{"title":"Products","description":null,"products":[{"product_id":"subaru-wrx-top-mount-intercooler-hose-kit","title":"TR Subaru WRX Top Mount Intercooler Hose Kit 02-05 Subaru WRX","description":"\u003cp\u003eModel 2002- 2005 Subaru WRX \u003c\/p\u003e\n\u003cp\u003eTomioka Racing silicone hose for the Top Mount Intercooler is constructed from high quality 5-ply silicone materials. TR silicone hose kit is designed for factory direct replacement with none of the weaknesses of factory hoses. TR intercooler hose is meant for high pressure and heat applications that far surpasses the factory hoses. Increase in TR hose’s diameter allows more air flow to the intercooler and increase throttle response. All TR silicone hose products come with lifetime warranty for your protection. The hose kits also come in three colors black, blue and red to suit your needs.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#cccccc\" height=\"27\"\u003e\u003cspan class=\"style10\"\u003e5-Ply Silicone Construction\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"30\"\u003eDesigned for High Pressure \u0026amp; High Heat Applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#cccccc\" height=\"27\"\u003eBolt-On Application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\"\u003eLifetime Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#cccccc\" height=\"27\"\u003e\u003cspan class=\"style10\"\u003eTurbo to Top Mount Intercooler Hose x 1\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\"\u003eTop Mount Intercooler to Throttle Body Hose x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#cccccc\" height=\"27\"\u003eBlow Off Valve Return Hose x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Tomioka Racing","offers":[{"title":"Black","offer_id":47623708737760,"sku":"TR-HS1001-BLACK","price":85.0,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":47623708770528,"sku":"TR-HS1001-RED","price":85.0,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":47623708803296,"sku":"TR-HS1001-BLUE","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/dsc_7464_copy_d6817d40-1323-4468-a738-3a22233bf838.jpg?v=1754000531"},{"product_id":"2015-subaru-wrx-turbo-inlet-hose","title":"TR 2015+ Subaru WRX Turbo Inlet Hose","description":"\u003cp\u003e\u003cimg src=\"%7B%7Bmedia%20url=\" wysiwyg=\"\" alt=\"Lifetime Warranty\" width=\"200\" height=\"136\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eTR Subaru turbo inlet hose features a heavy duty 5-ply silicone design with wire reinforcement that will not collapse. The silicone hose is also designed for bolt-on fitment. With an overall larger diameter over stock hose and the absence of pleated section, TR inlet hose delivers more airflow needed to increase acceleration and horsepower. TR inlet also improves turbo spool time and perfect for race applications. TR silicone inlet hose comes with lifetime warranty as an added peace of mind and turbo they are available in black, red and blue colors.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003ePlease designate color at checkout.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable width=\"500\" cellspacing=\"0\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003e\u003cspan class=\"style10\"\u003eMaximum Airflow\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\"\u003eLarger Diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003e100% Bolt-on\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\"\u003e5-Ply Silicone Construction with wire reinforced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003eAvailable in red, blue, or black.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003cbr\u003e • Inlet Hose x 1 \u003cbr\u003e • T-Bolt Clamps x 2\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eDownload product release info \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1799\/0047\/files\/TR-HS1013.pdf?15872751685909830801\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: x-small;\"\u003e\u003cem\u003e\u003cstrong\u003eSee terms \u0026amp; conditions for warranty.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Tomioka Racing","offers":[{"title":"Black","offer_id":47623742423264,"sku":"TR-HS1013-BLACK","price":135.0,"currency_code":"USD","in_stock":false},{"title":"Red","offer_id":47623742456032,"sku":"TR-HS1013-RED","price":135.0,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":47623742488800,"sku":"TR-HS1013-BLUE","price":135.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/1_hose_tomioka_sh_web.jpg?v=1754002988"},{"product_id":"tr-subaru-brz-scion-frs-toyota-gr86-2022-dual-ceramic-ball-bearing-dcbb-turbo-kit-up-to-500-whp-stock-replacement","title":"TR G670 Dual Ceramic Ball Bearing (DCBB) Turbo Kit for the 2022+ Toyota GR86 (Billet Wheel \u0026 Billet  Actuator)","description":"\u003cp\u003eTomioka Racing's turbocharger kit is an all-in-one solution to increase power for the Toyota GR86 now available in our proprietary Ball Bearing version. The kit comes with a 58\/76mm billet compressor wheel turbocharger featuring dual ceramic ball bearing technology and a billet waste-gate actuator.  \u003c\/p\u003e\n\u003cp\u003eThis brz turbo kit is able to add 125+HP on the stock fuel system. On a manual transmission, an upgraded clutch is highly recommended but not required. This kit works perfectly fine with automatic transmission. \u003c\/p\u003e\n\u003cp\u003eWith custom 54mm ceramic ball bearing requires less oil to run and spools faster. With its larger compressor and turbine wheel, it will achieve higher top-end power compared to the journal bearing version. The turbo is oil \u0026amp; water cooled and come as a dual ball bearing unit for spooling faster. In addition, the billet waste-gate actuator ensures to hold boost levels at high RPM.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0); text-decoration: underline;\"\u003e\u003cstrong\u003ePerformances: \u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn 91\/93 octane (10PSI) with selected exhaust modifications, 300 to 325 WHP\u003c\/p\u003e\n\u003cp\u003eOn E85 ethanol, up to 500 WHP on built engine with upgraded fuel modifications. \u003c\/p\u003e\n\u003cp\u003eNow Featuring the BMC Conical air filter. Designed for direct air intake we teamed up with BMC to create our full turbo kit with a top of the line air filter system!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eCharacteristics:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eIN: 54mm\/ EX: 67mm billet compressor wheel \u003c\/li\u003e\n\u003cli\u003eIN: 54mm\/ EX: 49mm turbine wheel \u003c\/li\u003e\n\u003cli\u003e54mm Inducer Billet Compressor Wheel CHRA Dual Ceramic Ball Bearing (DCBB)\u003c\/li\u003e\n\u003cli\u003e0.8 Bar (10 Psi) Internal Wastegate  \u003c\/li\u003e\n\u003cli\u003e3-Bar MAP Sensor Included\u003c\/li\u003e\n\u003cli\u003eIntercooler, piping, ball-bearing, oil \u0026amp; water cooled Included\u003c\/li\u003e\n\u003cli\u003eUp to 400 WHP for stock engine on E85 Ethanol \u003c\/li\u003e\n\u003cli\u003eUp to 500 WHP for build engine on E85 Ethanol \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eMandrel Bent Aluminum Front Mount Intercooler\u003c\/li\u003e\n\u003cli\u003eTig Welded Stainless Steel Turbo Manifold and exhaust piping\u003c\/li\u003e\n\u003cli\u003ePre welded engine oil pan (optional with extra cost)\u003c\/li\u003e\n\u003cli\u003eEcutek Base Map + License (optional with extra cost) \u003c\/li\u003e\n\u003cli\u003eCharge Pipe\u003c\/li\u003e\n\u003cli\u003eAir Intake\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eOMNI 3 bar MAP Sensor\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003e4-ply silicone hose \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eHi-temperature turbo blanket\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eAll Necessary Hardware to Install\u003c\/li\u003e\n\u003cli\u003eBMC Air Filter Conical Filter \u003cspan data-mce-fragment=\"1\"\u003eFBSA70-110 \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eTR Winshield Decal x 1 \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline; color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003e\u003cspan data-mce-fragment=\"1\"\u003eNotes:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eTo tune your vehicle with this kit, you must have either an \u003ca href=\"https:\/\/www.edoperformance.com\/collections\/sale-ecutek\"\u003eEcutek\u003c\/a\u003e. If you don't already have one of these options, you'll need to purchase it along with your turbo kit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e** Off Road Use Only. This product or products may not comply with some State, Federal, Provincial and\/or Local laws, ordinances, regulations or emissions. The buyer takes full responsibility of the use of these products on their automobile which may or may not conform to all applicable laws and regulations for on road or highway use.** \u003c\/p\u003e","brand":"Tomioka Racing","offers":[{"title":"No \/ No","offer_id":47626256122080,"sku":"TR-TS1063","price":4675.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Yes","offer_id":47626256187616,"sku":"TR-TS1063-Map","price":5275.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ No","offer_id":47626256253152,"sku":"TR-TS1063-Pan","price":4950.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Yes","offer_id":47626256318688,"sku":"TR-TS1063-Pan-Map","price":5550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/Untitleddesign_2.png?v=1754066494"},{"product_id":"tomioka-racing-carbon-fiber-e-brake-handle-for-subaru-brz-scion-fr-s-toyota-ft86-gr86-2015-wrx-sti","title":"Tomioka Racing Carbon Fiber E-Brake Handle for Subaru BRZ\/Scion FR-S\/Toyota FT86, GR86 \u0026 2015+ WRX\/STi","description":"\u003cp\u003e\u003cspan\u003eTomioka Racing Carbon Fiber E-Brake Handle adds the luxurious look to your Subaru BRZ, Scion FRS and Toyota FT86. or your 6-speed VA\/VB Subaru WRX Made from dry carbon fiber with \u003c\/span\u003e\u003cspan\u003echrome ends, it is an inexpensive addition to style the interior. The handle is designed as direct replacement to factory handle and installation is a snap.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eAll E-Brake handle includes the installation hardware.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eFitment:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2015+ Subaru WRX\/STI VA \u003c\/li\u003e\n\u003cli\u003e2022+ Subaru WRX VB\u003c\/li\u003e\n\u003cli\u003e2013+ FRs, BRZ, FT86\u003cstrong\u003e\u003cu\u003e\u003c\/u\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e2022+ GR86\/BRZ\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eSpecifications:\u003c\/u\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCarbon Fiber Finish\u003c\/li\u003e\n\u003cli\u003eDirect Factory Replacement handle\u003c\/li\u003e\n\u003cli\u003eChrome Ends\u003c\/li\u003e\n\u003cli\u003eOptimum Feel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eE-Brake Handle\u003c\/li\u003e\n\u003cli\u003eInstallation Hardware\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47673556926688,"sku":"TR-AC1008-BLK","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/TR-AC1008-4_1a83dfaf-d816-406c-b0c2-a0e9879e91ea.png?v=1755723550"},{"product_id":"tomioka-racing-wrx-forester-fa20dit-oem-turbo-upgrade-direct-replacement-gtx29-turbocharger-2015-wrx-2014-forester","title":"Tomioka Racing WRX\/Forester FA20DIT OEM Turbo Upgrade - Direct Replacement GTX29 Turbocharger (2015+ WRX, 2014+ Forester)","description":"\u003cp class=\"whitespace-pre-wrap break-words\"\u003eThe perfect solution for upgrading or replacing your aging factory turbocharger, this direct-fit Tomioka Racing turbo delivers OEM reliability with enhanced performance potential. Built with premium journal ball bearings and featuring a 20% larger billet compressor wheel with 17% longer blades, this turbo ensures both longevity and improved airflow over the stock unit. The matched porting and TR billet wastegate actuator maintain factory-like spool characteristics while offering headroom for additional power when desired.\u003c\/p\u003e\n\u003cp class=\"whitespace-pre-wrap break-words\"\u003eWhether your factory turbo is showing signs of wear or you're proactively seeking a more robust replacement, this upgrade provides peace of mind with its superior build quality and expanded performance capabilities. Quick spooling characteristics ensure a seamless transition from your stock turbo, while the enhanced design supports higher power levels without sacrificing daily drivability. Installation is straightforward with all necessary fittings and gaskets included, making it an ideal choice for those looking to replace their factory turbo with a more capable unit.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 410px;\" height=\"273\" width=\"363\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 229.915px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eBearing Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 165.199px;\"\u003e\n\u003cp\u003eBall Bearing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 229.915px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eFlange Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 165.199px;\"\u003e\n\u003cp\u003eStandard Subaru 5-Bolts\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 229.915px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eCompressor \/ Turbine Wheel:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 165.199px;\"\u003e\n\u003cp\u003e72 mm \/ 61mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 229.915px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eTurbine Housing:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 165.199px;\"\u003e\n\u003cp\u003e10cm\u003csup\u003e2\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 229.915px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eActuator:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 165.199px;\"\u003e\n\u003cp\u003e1.03 bar \/ 15 psi\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 229.915px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eHorsepower:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 165.199px;\"\u003e\n\u003cp\u003e500 HP\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBall Bearing\u003c\/li\u003e\n\u003cli\u003eBillet Compressor Wheel\u003c\/li\u003e\n\u003cli\u003eLarger Turbine Wheel\u003c\/li\u003e\n\u003cli\u003e100% Bolt-On\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2015+ Subaru WRX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2014+ Subaru Forester (FA20DIT)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eGaskets\u003c\/li\u003e\n\u003cli\u003eHardware Kit\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808806060256,"sku":"TR-TS1042","price":1905.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/VA_Turbo_1.png?v=1759277873"},{"product_id":"tr-tw2009-dcbb-bwx700-600hp-turbocharger-with-exhaust-manifold-for-bmw-n55-engine","title":"TR TW2009 DCBB BWX700 600HP Turbocharger with Exhaust Manifold for BMW N55 Engine","description":"\u003cp\u003eUnleash Ultimate Power with the N55 Dual Ceramic Ball Bearing Turbocharger Kit\u003cbr\u003e\u003cbr\u003eElevate your BMW's performance to new heights with our cutting-edge N55 dual ceramic ball bearing turbocharger kit. Engineered specifically for F2x and F3x BMW platforms equipped with the N55 EWG engine, this premium turbo kit is the ultimate upgrade for boosting horsepower and unleashing your vehicle's true potential.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eOptimized for High Boost and High Temperatures\u003c\/strong\u003e\u003cbr\u003eThrough meticulous transient flow analysis and rigorous flow bench testing, we've optimized the HI-NI turbine housing for the BWX700 turbocharger, ensuring compatibility with stock fitment and location while retaining the original wastegate. The robust cast iron exhaust manifold is designed to withstand extreme pressures and temperatures of high boost applications.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eMaximized Airflow Efficiency with 10+ 10 Billet Wheels Pattern\u003c\/strong\u003e\u003cbr\u003eEnhance your vehicle's performance with high-boost temperature and high-efficiency point milled billet wheels with bullet nuts. This innovative feature maximizes airflow efficiency, allowing your N55 dual ceramic ball bearing turbocharger to deliver unprecedented power.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSeamless Integration with Stock Components\u003c\/strong\u003e\u003cbr\u003eUnlike a simple turbo upgrade, our N55 dual ceramic ball bearing turbocharger kit is a seamlessly integrated solution that allows for effortless incorporation of stock fitment exhaust downpipes, intakes, and charge pipes. This hassle-free installation process lets you retain your factory wastegate, high-performance downpipe, intake, and charge pipe without requiring custom parts.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eUnleash 600hp with the Right Modifications\u003c\/strong\u003e\u003cbr\u003eWith the right modifications, this N55 dual ceramic ball bearing turbocharger kit can unleash an astonishing 600hp, taking your driving experience to new heights of exhilaration.\u003cbr\u003e\u003cbr\u003eUpgrade your BMW today with the N55 dual ceramic ball bearing turbocharger kit and experience the ultimate in performance and power.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBearing: Dual Ceramic Ball Bearing (DCBB) \u003c\/li\u003e\n\u003cli\u003eFlange: Standard OEM N55 \u003c\/li\u003e\n\u003cli\u003eCompressor Wheel: In - 65.8mm; Ex - 82.5mm (10+10 blades)\u003c\/li\u003e\n\u003cli\u003eTurbine Wheel: in - 62.4mm; Ex - 68.1 mm (10 blades) \u003c\/li\u003e\n\u003cli\u003eMax Power: 600 HP \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAPPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e*Applicable for Electronic Wastegate Only\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW 335i F30 2013 to 2015 \u003c\/li\u003e\n\u003cli\u003eBMW 335iDrive F30 2013 to 2015 \u003c\/li\u003e\n\u003cli\u003eBMW 435i F32 2013 to 2015 \u003c\/li\u003e\n\u003cli\u003eBMW 435i xDrive F32 2013 to 2016 \u003c\/li\u003e\n\u003cli\u003eBMW M135i F22 2014 to 2016 \u003c\/li\u003e\n\u003cli\u003eBMW M2 F87 2015 to 2018 \u003c\/li\u003e\n\u003cli\u003eBMW M235i F22 2014 to 2016 \u003c\/li\u003e\n\u003cli\u003eBMW M234i xDrive F22 2014 to 2016 \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eKIT CONTENTS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger \u003c\/li\u003e\n\u003cli\u003eManifold \u003c\/li\u003e\n\u003cli\u003eOil pipe \u003c\/li\u003e\n\u003cli\u003eWater pipe\u003c\/li\u003e\n\u003cli\u003eHardware Kits \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808806289632,"sku":"TR-TW2009","price":3500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/N55FrontwithExhaust_08b4952e-e618-4370-98c1-cf7ff9487057.png?v=1759277874"},{"product_id":"tr-td05-16g-bolt-on-turbo-stock-replacement-for-subaru-wrx-2002-2007-sti-2004-2020","title":"TR TD05-16G Bolt On Turbo Stock Replacement for Subaru WRX 2002-2007 \u0026 STI 2004-2020 (TR-TS1002)","description":"\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eRally Race Proven Pacific Forest Rally\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eProven in Rally Racing\u003c\/strong\u003e:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eTomioka Racing Turbochargers have demonstrated their exceptional performance in the challenging terrain and high-intensity competitions of rally racing.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePacific Forest Rally Success\u003c\/strong\u003e:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eOur turbochargers have earned their reputation by excelling at the Pacific Forest Rally, a renowned event in the world of motorsports.\u003c\/p\u003e\n\u003cp\u003eTR TD05-16G Turbo is the one of the best all-around turbo upgrade for your street car. The turbo characteristic is very similar to factory VF39 Turbo but with an increased spool rate and capacity to handle 330 HP. This makes the TD05-16G a great addition to your engine if you are planning to keep your car daily driver friendly. The turbo comes with all fitting and gaskets, ready to bolt on out of the box.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd\u003eStandard Subaru 5-Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" width=\"100\" bgcolor=\"#CCCCCC\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd width=\"36\" bgcolor=\"#CCCCCC\"\u003eIn:\u003c\/td\u003e\n\u003ctd width=\"364\" bgcolor=\"#CCCCCC\"\u003e48.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd width=\"364\" bgcolor=\"#CCCCCC\"\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" height=\"27\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eIn:\u003c\/td\u003e\n\u003ctd\u003e56 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx:\u003c\/td\u003e\n\u003ctd\u003e49.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" height=\"27\" bgcolor=\"#CCCCCC\"\u003eActuator:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003e1.1 Bar \/ 16 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" height=\"27\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e7 cm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" height=\"27\" bgcolor=\"#CCCCCC\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003e400 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2002-2007 Subaru WRX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2004-2020 Subaru STI\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eContents of Kit:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003eTurbocharger\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eActuator\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eOil pipe\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eWater pipe \u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eGaskets\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eHardware Kits \u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808806387936,"sku":"TR-TS1002","price":1095.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/TR-TS1002_1__620x600_70fd5acc-5327-40a3-a2b0-66579d0318f7.jpg?v=1759277877"},{"product_id":"tr-td06-20g-turbo-for-evolution-lancer-4-9","title":"TR TD06-20G Turbo for Evolution Lancer 4-9","description":"\u003cp\u003eThe TR TD06-20G for the Mitsubishi EVO Lancer one of the largest bolt on turbo you can get! This turbo features a larger exhaust housing 10.5CM² and increased wheel size to deliver a whooping 500 HP turbo capacity. Whether if you are looking for a high performance street turbo or a one built for the track this turbo does it all! \u003cbr\u003e \u003cbr\u003e Check out the available video and dyno graph on this turbo. \u003cbr\u003e \u003cbr\u003e \u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"500\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"100\" rowspan=\"2\" bgcolor=\"#FFFFFF\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd width=\"36\" bgcolor=\"#FFFFFF\"\u003eIn:\u003c\/td\u003e\n\u003ctd width=\"364\" bgcolor=\"#FFFFFF\"\u003e52.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFFF\"\u003eEx:\u003c\/td\u003e\n\u003ctd width=\"364\" bgcolor=\"#FFFFFF\"\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" rowspan=\"2\" bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eIn:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e61 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e54 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\" bgcolor=\"#FFFFFF\"\u003eActuator:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#FFFFFF\"\u003e0.8 Bar \/ 12 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003e10.5 cm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\" bgcolor=\"#FFFFFF\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#FFFFFF\"\u003e500 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr\u003e \u003cbr\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e• Turbocharger\u003cbr\u003e• Actuator\u003cbr\u003e• Oil Pipe\u003cbr\u003e• Water Pipe\u003cbr\u003e• Gaskets\u003cbr\u003e• Hardware kits\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default","offer_id":47808806453472,"sku":"TR-TM1000","price":1645.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/tr-tm1000_3.jpg?v=1759277878"},{"product_id":"tr-td05-18g-bolt-on-turbo-stock-replacement-for-subaru-wrx-08-14-forester-09-13-legacy-gt-05-09-flange-outlet","title":"TR TD05-18G Bolt On Turbo Stock Replacement for Subaru WRX 08-14, Forester 09-13 \u0026 Legacy GT 05-09 (Flange Outlet)","description":"\u003cp\u003eThe TR TD05-18G Turbo is the one of the best turbo upgrade for your street car. The turbo characteristics are very similar to factory VF42 turbo but with an increased spool rate and capacity to handle power upwards of 350WHP so it makes a great addition to your engine if you are planning to keep your car daily driver friendly. The turbo comes with all fitting and gaskets, ready to bolt on out of the box. \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"500\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd\u003eStandard Subaru 5-Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"100\" rowspan=\"2\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"36\"\u003eIn:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e50.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" rowspan=\"2\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eIn:\u003c\/td\u003e\n\u003ctd\u003e56 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx:\u003c\/td\u003e\n\u003ctd\u003e49.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\" colspan=\"2\"\u003eActuator:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e1.1 Bar \/ 16 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e7 cm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\" colspan=\"2\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e400 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eTurbocharger\u003c\/span\u003e\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eActuator\u003c\/span\u003e\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eOil Pipe\u003c\/span\u003e\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eWater Pipe\u003c\/span\u003e\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eGaskets\u003c\/span\u003e\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eHardware kits\u003c\/span\u003e\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2008-2014 Subaru WRX\u003c\/li\u003e\n\u003cli\u003e2009-2013 Subaru Forester XT\u003c\/li\u003e\n\u003cli\u003e2005-2009 Subaru Legacy GT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808806420704,"sku":"TR-TS1004","price":1095.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/TR-TS1004_1__620x600_820f9562-b1ad-4cf9-b526-c082a630e984.jpg?v=1759277878"},{"product_id":"tr-td06-20g-bolt-on-turbo-stock-replacement-for-subaru-wrx-2002-2007-sti-2004-2020","title":"TR TD06-20G Bolt On Turbo Stock Replacement for Subaru WRX 2002-2007 \u0026 STI 2004-2020","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: x-small;\"\u003e** Attention: All of our turbocharger now comes with billet wastegate actuator. The brass wastegate actuator will be phased out. Picture(s) of turbo or turbo kit(s) with the brass wastegate actuator will be replaced as soon as the new picture(s) become available. If you have any questions, please contact us ** \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe TR TD06-20G turbo is designed for the newer models of Subaru with fly-by throttle turbo design. This turbo is made for high-end power while maintaining the bolt on design as much as possible. This turbo can handle 500 HP for all your racing needs. Upgraded engine internals is strongly recommended for this turbo. \u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2002-2007 WRX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2004-2020 STI\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContents of Kit:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eTurbocharger\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eActuator\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eOil Pipe\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eWater Pipe\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eGaskets\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eHardware kits\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar","offer_id":47808806486240,"sku":"TR-TS1008-1.1","price":1550.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar","offer_id":47808806519008,"sku":"TR-TS1008-1.3","price":1550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/dsc_4367_front_for_web.jpg?v=1759277878"},{"product_id":"tr-td06-20g-bolt-on-turbo-stock-replacement-for-subaru-wrx-08-14-forester-09-13-legacy-gt-05-09-flange-outlet","title":"TR TD06-20G Bolt On Turbo Stock Replacement for Subaru WRX 08-14, Forester 09-13 \u0026 Legacy GT 05-09 (Flange Outlet)","description":"\u003cp\u003eIntroducing the largest available bolt on turbo replacement for the 2008+ WRX GH8, 2005+ Legacy GT \u0026amp; 2009+ Forester SH5\/9. The TR TD06-20G turbo is designed for the newer models of Subaru with fly-by throttle turbo design. This turbo is made for high-end power while maintaining the bolt on design as much as possible. This turbo can handle 500 HP for all your racing needs. Upgraded engine internals is strongly recommended for this turbo.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eContents of Kit:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eTurbocharger\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eActuator\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eOil Pipe\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eWater Pipe\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eGaskets\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eHardware kits\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2008-2014 WRX\u003c\/li\u003e\n\u003cli\u003e2009-2013 Forester XT\u003c\/li\u003e\n\u003cli\u003e2005-2009 Legacy GT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar","offer_id":47808806551776,"sku":"TR-TS1006","price":1550.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar","offer_id":47808806584544,"sku":"TR-TS1006","price":1550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/ts1006-lores-crop3.jpg?v=1759277877"},{"product_id":"tr-td04hl-19t-turbo-for-saab","title":"TR TD04HL-19T Turbo for Saab","description":"\u003cp\u003eGet the most of out your dollar with the Tomioka Racing TD04HL-19T Turbo! This direct replacement, performance upgraded turbo is the most bang for your buck turbo on the market for Saab; just compare and see. This turbo features a 19T compressor wheel vs the factory stock 15T wheel and can support up to 400HP! Great for if you are just looking for a stock replacement turbo or something with performance in mind.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFitment:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e2000-2003 Saab 9-3x Aero 205bhp (B205R)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e1999-2002 Saab 9-3 Viggen (B235R)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e2000-2005 Saab 9-5 2.3T Aero (B235R)\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e2004-2006 Saab 9-5 2.3T 230bhp (B235L)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808806617312,"sku":"TR-TA1000","price":1060.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/tr-ta1000_1.jpg?v=1759277878"},{"product_id":"tr-td04hl-19t-turbo-for-volvo","title":"TR TD04HL-19T Turbo for Volvo","description":"\u003cp\u003eTR TD04HL-19T bolt on turbo for volvo\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default","offer_id":47808806650080,"sku":"TR-TV1000","price":1060.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/tr-tv1000_1.jpg?v=1759277878"},{"product_id":"tr-td06-20g-twin-scroll-turbo-for-subaru-jdm-sti-2004-2007-replace-vf36-vf37-vf42","title":"TR TD06-20G Twin Scroll Turbo for Subaru JDM STi 2004-2007 Replace VF36 VF37 VF42","description":"\u003cp\u003eTomioka Racing TD06-20G Twin Scroll Turbo is currently the largest replacement bolt-on turbo available in our product line! This turbo is ideal if you’re looking to put down the highest amount of horsepower without having to convert to a rotated mount set up and maintaining fast spool. This turbo is 100% bolt-on and will support 450WHP without missing a beat! Perfect for track and street applications!\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e* JDM twin scroll header, uppipe, and downpipe needed for installation. *\u003cbr\u003e\u003cbr\u003eCheck out the available video and dyno graph on this turbo. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"0\" border=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd\u003eSubaru JDM Twin Scroll 5-Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" rowspan=\"2\" width=\"100\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"36\"\u003eIn:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e52 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" height=\"27\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eIn:\u003c\/td\u003e\n\u003ctd\u003e61 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx:\u003c\/td\u003e\n\u003ctd\u003e54 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\" height=\"27\"\u003eActuator:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e1.1 Bar \/ 16 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" height=\"27\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e8 cm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\" height=\"27\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e500 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAPPLICATIONS (JDM Only)\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2004-2007 STi\u003c\/li\u003e\n\u003cli\u003eOnly for VF36 VF37 VF42\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003cbr\u003e• Twin scroll Turbocharger \u003cbr\u003e• Actuator \u003cbr\u003e• Oil \u0026amp; Waer Pipe \u003cbr\u003e• Gaskets \u0026amp; Hardware Kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Attention: All of our turbochargers now come with a billet wastegate actuator. The brass wastegate actuator will be phased out. Picture(s) of turbo or turbo kit(s) with the brass wastegate actuator will be replaced as soon as the new picture(s) become available. If you have any questions, please contact us.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808806682848,"sku":"TR-TS1015","price":1650.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/dsc_4381_front_for_web.jpg?v=1759277878"},{"product_id":"tr-subaru-legacy-gt-td06-20g-twin-scroll-bolt-on-turbo-stock-replacement","title":"TR Subaru Legacy GT TD06-20G Twin Scroll Bolt On Turbo Stock Replacement","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: x-small;\"\u003e** Attention: All of our turbocharger now comes with billet wastegate actuator. The brass wastegate actuator will be phased out. Picture(s) of turbo or turbo kit(s) with the brass wastegate actuator will be replaced as soon as the new picture(s) become available. If you have any questions, please contact us ** \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eTomioka Racing TD06-20G Twin Scroll Turbo is currently the largest stock replacement bolt-on turbo available in our product line! This turbo is ideal if you’re looking to put down the highest amount of horsepower without having to convert to a rotated mount set up and maintaining fast spool. This turbo is 100% bolt-on and will support 450WHP without missing a beat! Perfect for track and street applications !\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003e*\u003c\/span\u003e\u003cspan\u003eTR twin scroll turbine housing is designed for VF36\/37, so the \u003cstrong\u003eflange \u003c\/strong\u003edesign is a little different from VF38.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e* Your vehicle must have twin-scroll set-up in order to run this turbo.\u003cbr\u003e\u003cbr\u003eCheck out the available video and dyno graph on this turbo. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ctable width=\"500\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd\u003eStandard Subaru 5-Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"100\" rowspan=\"2\" bgcolor=\"#CCCCCC\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd width=\"36\" bgcolor=\"#CCCCCC\"\u003eIn:\u003c\/td\u003e\n\u003ctd width=\"364\" bgcolor=\"#CCCCCC\"\u003e51 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd width=\"364\" bgcolor=\"#CCCCCC\"\u003e58 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" rowspan=\"2\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eIn:\u003c\/td\u003e\n\u003ctd\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx:\u003c\/td\u003e\n\u003ctd\u003e56 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eActuator:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003e1 Bar \/ 14.7 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e8 cm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003e500 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003cbr\u003e• Twin scroll Turbocharger \u003cbr\u003e• Actuator \u003cbr\u003e• Oil \u0026amp; Waer Pipe \u003cbr\u003e• Gaskets \u0026amp; Hardware Kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default","offer_id":47808806748384,"sku":"TR-TS1010","price":1650.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/frontdsc_8009.jpg?v=1759277878"},{"product_id":"tr-sigma-turbo-for-mitsubishi-evolution-x","title":"TR-TM1004 Sigma Turbo for Mitsubishi Evolution X (4B11T) | Bolt-On Turbo Upgrade","description":"\u003ch2\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTomioka Racing TR-TM1004 Sigma Turbo\u003c\/strong\u003e is a \u003cstrong\u003ebolt-on turbo upgrade\u003c\/strong\u003e engineered for the \u003cstrong\u003eMitsubishi Lancer Evolution X (4B11T)\u003c\/strong\u003e. It’s built for enthusiasts who want a stronger mid-to-top-end powerband, higher airflow capacity, and boost stability—without the complexity of custom fabrication.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhy Upgrade to the Sigma Turbo (TR-TM1004)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% bolt-on fitment\u003c\/strong\u003e for the Evo X turbo location and factory-style install\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3” inlet\u003c\/strong\u003e supports increased airflow and power headroom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePorted \u0026amp; polished turbine housing\u003c\/strong\u003e improves exhaust flow efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.5 bar \/ 21 psi actuator\u003c\/strong\u003e for strong boost control on performance tunes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMid-to-high powerband focus\u003c\/strong\u003e for street pulls and track use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003ePower Notes \u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe “up to ~550HP” figure is \u003cstrong\u003epower potential\u003c\/strong\u003e, not a guarantee. Final output depends heavily on supporting mods (fueling, intercooler, intake, exhaust), fuel quality (pump vs ethanol blends), tuning strategy, and overall engine condition. A proper tune is required.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eTurbo Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Type:\u003c\/strong\u003e Journal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressor Wheel:\u003c\/strong\u003e 61.4mm inducer \/ 82mm exducer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTurbine Wheel:\u003c\/strong\u003e 67.1mm inducer \/ 58.8mm exducer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActuator:\u003c\/strong\u003e 1.5 bar \/ 21 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTurbine Housing:\u003c\/strong\u003e 12cm²\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Potential:\u003c\/strong\u003e Up to ~550HP (with supporting mods \u0026amp; tuning)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle:\u003c\/strong\u003e Mitsubishi Lancer Evolution X\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 4B11T\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eIf you’re unsure about compatibility with your specific year\/trim, message us before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhat’s Included\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger assembly\u003c\/li\u003e\n\u003cli\u003eWastegate actuator\u003c\/li\u003e\n\u003cli\u003eOil pipe\u003c\/li\u003e\n\u003cli\u003eWater pipe\u003c\/li\u003e\n\u003cli\u003eGasket(s) (varies by batch\/listing)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eRecommended Supporting Mods\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional ECU tune (required)\u003c\/li\u003e\n\u003cli\u003eHigh-flow intake \/ turbo inlet solution compatible with 3” inlet\u003c\/li\u003e\n\u003cli\u003eUpgraded intercooler + charge piping (to control IATs)\u003c\/li\u003e\n\u003cli\u003eFuel system upgrades if targeting higher boost \/ higher power\u003c\/li\u003e\n\u003cli\u003eFree-flow downpipe \u0026amp; exhaust\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eUse Case\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eIdeal for Evo X owners building a responsive street car with serious top-end power capability, or a track-focused setup needing reliable airflow and boost control.\u003c\/p\u003e\n\u003ch2 data-end=\"3999\" data-start=\"3949\"\u003e\u003cstrong\u003eSpecs Table\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"4313\" data-start=\"4000\"\u003e\u003cstrong data-end=\"4016\" data-start=\"4000\"\u003ePart Number:\u003c\/strong\u003e TR-TM1004\u003cbr data-end=\"4029\" data-start=\"4026\"\u003e\u003cstrong data-end=\"4045\" data-start=\"4029\"\u003eApplication:\u003c\/strong\u003e Mitsubishi Lancer Evolution X (4B11T)\u003cbr data-end=\"4086\" data-start=\"4083\"\u003e\u003cstrong data-end=\"4098\" data-start=\"4086\"\u003eBearing:\u003c\/strong\u003e Journal\u003cbr data-end=\"4109\" data-start=\"4106\"\u003e\u003cstrong data-end=\"4130\" data-start=\"4109\"\u003eCompressor Wheel:\u003c\/strong\u003e 61.4mm \/ 82mm\u003cbr data-end=\"4147\" data-start=\"4144\"\u003e\u003cstrong data-end=\"4165\" data-start=\"4147\"\u003eTurbine Wheel:\u003c\/strong\u003e 67.1mm \/ 58.8mm\u003cbr data-end=\"4184\" data-start=\"4181\"\u003e\u003cstrong data-end=\"4197\" data-start=\"4184\"\u003eActuator:\u003c\/strong\u003e 1.5 bar \/ 21 psi\u003cbr data-end=\"4217\" data-start=\"4214\"\u003e\u003cstrong data-end=\"4237\" data-start=\"4217\"\u003eTurbine Housing:\u003c\/strong\u003e 12cm²\u003cbr data-end=\"4246\" data-start=\"4243\"\u003e\u003cstrong data-end=\"4266\" data-start=\"4246\"\u003ePower Potential:\u003c\/strong\u003e Up to ~550HP (supporting mods + tune required)\u003c\/p\u003e\n\u003ch2 data-end=\"4378\" data-start=\"4320\"\u003e\u003cstrong\u003eFAQs\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"4569\" data-start=\"4379\"\u003e\u003cstrong data-end=\"4424\" data-start=\"4379\"\u003eQ: Is this turbo truly bolt-on for Evo X?\u003c\/strong\u003e\u003cbr data-end=\"4427\" data-start=\"4424\"\u003eA: Yes—TR-TM1004 is designed as a bolt-on upgrade in the factory turbo location. You still need proper install steps, leak checks, and tuning.\u003c\/p\u003e\n\u003cp data-end=\"4656\" data-start=\"4571\"\u003e\u003cstrong data-end=\"4595\" data-start=\"4571\"\u003eQ: Do I need a tune?\u003c\/strong\u003e\u003cbr data-end=\"4598\" data-start=\"4595\"\u003eA: 100% yes. Do not install and drive hard without tuning.\u003c\/p\u003e\n\u003cp data-end=\"4853\" data-start=\"4658\"\u003e\u003cstrong data-end=\"4695\" data-start=\"4658\"\u003eQ: What does “up to ~550HP” mean?\u003c\/strong\u003e\u003cbr data-end=\"4698\" data-start=\"4695\"\u003eA: That’s the turbo’s potential with the right supporting mods (fueling, intercooler, intake\/exhaust) and an aggressive, safe tune. Your results will vary.\u003c\/p\u003e\n\u003cp data-end=\"5001\" data-start=\"4855\"\u003e\u003cstrong data-end=\"4906\" data-start=\"4855\"\u003eQ: What supporting mods do you recommend first?\u003c\/strong\u003e\u003cbr data-end=\"4909\" data-start=\"4906\"\u003eA: Tune + intercooler + intake\/inlet + fueling (if you’re pushing power) + downpipe\/exhaust.\u003c\/p\u003e\n\u003cp data-end=\"5185\" data-start=\"5003\"\u003e\u003cstrong data-end=\"5057\" data-start=\"5003\"\u003eQ: Journal bearing vs ball bearing—should I worry?\u003c\/strong\u003e\u003cbr data-end=\"5060\" data-start=\"5057\"\u003eA: Journal bearing is proven and cost-effective. What matters most is correct oil supply\/return, heat management, and tuning.\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"No [+$0]","offer_id":47808806781152,"sku":"TR-TM1004","price":1855.0,"currency_code":"USD","in_stock":true},{"title":"Yes [+$366]","offer_id":47808806813920,"sku":"TR-TM1014","price":2315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/tr-tm1004_1__1.jpg?v=1759277878"},{"product_id":"tr-td05-18g-bolt-on-turbo-stock-replacement-for-subaru-wrx-2002-2007-and-sti-2002-2010-w-billet-actuator","title":"TR TD05-18G Bolt On Turbo Stock Replacement for Subaru WRX 2002-2007 and STI 2002-2010 w\/ Billet Actuator (TR-TS1000)","description":"\u003cp\u003eThe TR TD05-18G Turbo is the one of the best turbo upgrade for your street car. The turbo characteristics are very similar to factory VF42 turbo but with an increased spool rate and capacity to handle power upwards of 350WHP so it makes a great addition to your engine if you are planning to keep your car daily driver friendly. The turbo comes with all fitting and gaskets, ready to bolt on out of the box.\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable style=\"height: 198.515px;\" width=\"500\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"height: 19.5898px;\" bgcolor=\"#CCCCCC\" colspan=\"2\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd style=\"height: 19.5898px;\" bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"height: 19.5898px;\" colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd style=\"height: 19.5898px;\"\u003eStandard Subaru 5-Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"height: 39.1796px;\" bgcolor=\"#CCCCCC\" width=\"100\" rowspan=\"2\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd style=\"height: 19.5898px;\" bgcolor=\"#CCCCCC\" width=\"36\"\u003eIn:\u003c\/td\u003e\n\u003ctd style=\"height: 19.5898px;\" bgcolor=\"#CCCCCC\" width=\"364\"\u003e50.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"height: 19.5898px;\" bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd style=\"height: 19.5898px;\" bgcolor=\"#CCCCCC\" width=\"364\"\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"height: 39.1796px;\" height=\"27\" rowspan=\"2\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 19.5898px;\"\u003eIn:\u003c\/td\u003e\n\u003ctd style=\"height: 19.5898px;\"\u003e56 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"height: 19.5898px;\"\u003eEx:\u003c\/td\u003e\n\u003ctd style=\"height: 19.5898px;\"\u003e49.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.9922px;\"\u003e\n\u003ctd style=\"height: 26.9922px;\" bgcolor=\"#CCCCCC\" height=\"27\" colspan=\"2\"\u003eActuator:\u003c\/td\u003e\n\u003ctd style=\"height: 26.9922px;\" bgcolor=\"#CCCCCC\" height=\"27\"\u003e1.1 Bar \/ 16 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.9922px;\"\u003e\n\u003ctd style=\"height: 26.9922px;\" height=\"27\" colspan=\"2\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd style=\"height: 26.9922px;\" height=\"27\"\u003e7 cm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.9922px;\"\u003e\n\u003ctd style=\"height: 26.9922px;\" bgcolor=\"#CCCCCC\" height=\"27\" colspan=\"2\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd style=\"height: 26.9922px;\" bgcolor=\"#CCCCCC\" height=\"27\"\u003e400 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e• Turbocharger\u003cbr\u003e• Actuator\u003cbr\u003e• Oil Pipe\u003cbr\u003e• Water Pipe\u003cbr\u003e• Gaskets\u003cbr\u003e• Hardware kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication: \u003c\/strong\u003eSubaru GDA-GDB WRX\/STI 2002-2015, GC8 1998-2001, Forester SG5 2005-2007\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808806846688,"sku":"TR-TS1000","price":1095.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/dsc_137911.jpg?v=1759277878"},{"product_id":"tr-gt3076-billet-wheel-ball-bearing-turbo","title":"TR GT3076 Billet Wheel Ball Bearing Turbo","description":"\u003cdiv\u003eIntroducing Tomioka Racing Ball Bearing turbo series. Each ball bearing turbocharger is based on the popular Garrett GT3076 and GT3582 turbo. The smallest of ball bearing turbo is rated upwards of 500HP. Perfect for application from 4-Cylinder upwards and those looking for quick response. Coupled with Tomioka Racing’s stainless steel turbine housing, these ball bearing turbo are made for for quick spool and top-end power. Choose from many configurations on the stainless turbine housing from T3 inlets to 3-Inch V-Band and 0.82AR or 1.06AR. The stainless steel turbine housing is also available separately for those who intend to run GTX3076 or GTX3582 turbocharger. Backed with our 62-months warranty, you have plenty of reason to be at peace!\u003cbr\u003e \u003cbr\u003e \u003cbr\u003e \u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e \u003cbr\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#cccccc\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#cccccc\"\u003eBall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd\u003eT3 or V-Band\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#cccccc\" height=\"27\"\u003eActuator:\u003c\/td\u003e\n\u003ctd bgcolor=\"#cccccc\" height=\"27\"\u003eExternal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" height=\"27\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e0.63\/ 0.82 \/ 1.02 AR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#cccccc\" height=\"27\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd bgcolor=\"#cccccc\" height=\"27\"\u003e550HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e• Turbocharger\u003cbr\u003e• Gaskets\u003cbr\u003e• Hardware kits\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"0.63 A\/R Stainless Steel Turbine Housing with T3 Inlet \u0026 V-Band outlet (TR-TU3010)","offer_id":47808806879456,"sku":"TR-3000B-01","price":2067.0,"currency_code":"USD","in_stock":true},{"title":"0.82 A\/R Stainless Steel Turbine Housing with T3 Inlet \u0026 V-Band outlet (TR-TU3007)","offer_id":47808806912224,"sku":"TR-3000B-02","price":2067.0,"currency_code":"USD","in_stock":true},{"title":"1.02 A\/R Stainless Steel Turbine Housing with T3 Inlet \u0026 V-Band outlet (TR-TU3004)","offer_id":47808806944992,"sku":"TR-3000B-03","price":2067.0,"currency_code":"USD","in_stock":true},{"title":"0.63 A\/R Stainless Steel Turbine Housing with V-Band Inlet \u0026 V-Band outlet  (TR-TU3009)","offer_id":47808806977760,"sku":"TR-3000B-04","price":2067.0,"currency_code":"USD","in_stock":true},{"title":"0.82 A\/R Stainless Steel Turbine Housing with V-Band Inlet \u0026 V-Band outlet (TR-TU3005)","offer_id":47808807010528,"sku":"TR-3000B-05","price":2067.0,"currency_code":"USD","in_stock":true},{"title":"1.02 A\/R Stainless Steel Turbine Housing with V-Band Inlet \u0026 V-Band outlet (TR-TU3006)","offer_id":47808807043296,"sku":"TR-3000B-06","price":2067.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/gt3076-1-lores-crop.jpg?v=1759277878"},{"product_id":"tr-billet-td05-20g-turbo-with-billet-wheels-stock-replacement-for-subaru-wrx-2008-2014-legacy-gt-2005-2008-and-forester-sh5-9-2008","title":"TR Billet TD05-20G Turbo with Billet Wheels  Stock Replacement for Subaru WRX 2008-2014 , Legacy GT 2005-2008 and Forester SH5\/9 2008","description":"\u003cp\u003eThe TD05-20G turbo is for a street\/track car. The new billet TD05-20G turbo is rated for 450 HP and maintaining street street drivability. With lighter and stronger wheel blades than the TR TD05-18G. This turbo can handle mid to high-end horsepower without significant lag time compared to stock turbo!\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"500\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd\u003eStandard Subaru 5-Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"100\" rowspan=\"2\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"36\"\u003eIn:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e52.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" rowspan=\"2\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eIn:\u003c\/td\u003e\n\u003ctd\u003e56 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx:\u003c\/td\u003e\n\u003ctd\u003e49.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\" colspan=\"2\"\u003eActuator:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e1.1 Bar \/ 16 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e8cm^2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\" colspan=\"2\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e450 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2008-2014 Subaru WRX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2008 SH5\/9 Forester \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2005-2008 Legacy GT \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline; font-size: 1.4em;\"\u003e \u003c\/span\u003e\u003cstrong style=\"text-decoration: underline; font-size: 1.4em;\"\u003eKit Contents\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eGaskets\u003c\/li\u003e\n\u003cli\u003eActuator\u003c\/li\u003e\n\u003cli\u003eOil Pipe\u003c\/li\u003e\n\u003cli\u003eWater Pipe\u003c\/li\u003e\n\u003cli\u003eHardware Kits\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar","offer_id":47808807076064,"sku":"TR-TS1017","price":1570.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar","offer_id":47808807108832,"sku":"TR-TS1017","price":1570.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/ts1017-1_1.jpg?v=1759277878"},{"product_id":"tr-billet-td05-18g-bolt-on-turbo-stock-replacement-for-subaru-impreza-wrx-2002-2007-sti-2004-2020","title":"TR Billet TD05-18G Bolt On Turbo Stock Replacement for Subaru Impreza WRX 2002-2007 \u0026 STI 2004-2021 (TR-TS1021)","description":"\u003cp\u003eThe TD05-18G turbo is for a street\/track car. The new billet TD05-18G turbo is rated for 450 HP and maintaining street street drivability. With lighter and stronger wheel blades than the TR TD05-20G. This turbo can handle mid to high-end horsepower without significant lag time compared to stock turbo!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"500\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd\u003eStandard Subaru 5-Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"100\" bgcolor=\"#CCCCCC\" rowspan=\"2\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd width=\"36\" bgcolor=\"#CCCCCC\"\u003eIn:\u003c\/td\u003e\n\u003ctd width=\"364\" bgcolor=\"#CCCCCC\"\u003e52.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd width=\"364\" bgcolor=\"#CCCCCC\"\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" rowspan=\"2\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eIn:\u003c\/td\u003e\n\u003ctd\u003e56 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx:\u003c\/td\u003e\n\u003ctd\u003e49.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\" colspan=\"2\"\u003eActuator:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003e1.1 Bar \/ 16 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e8cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\" colspan=\"2\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003e440 HP (41lbs\/min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2002-2007 Subaru WRX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2004-2021 Subaru STI\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e•Turbocharger\u003cbr\u003e•Gaskets\u003cbr\u003e•Actuator\u003cbr\u003e•Oil Pipe\u003cbr\u003e•Water Pipe\u003cbr\u003e•Hardware Kits\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar","offer_id":47808807141600,"sku":"TR-TS1021","price":1265.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar","offer_id":47808807174368,"sku":"TR-TS1021","price":1265.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/TR-TS1021_1__620x600_96934fd3-4d6e-47bd-89bc-7be56fe77eef.jpg?v=1759277878"},{"product_id":"tr-td05-20g-turbo-w-billet-wheels-stock-replacement-for-subaru-impreza-wrx-2002-2007-sti-2004-2020","title":"TR TD05-20G Turbo w\/ Billet Wheels Stock Replacement for Subaru Impreza WRX 2002-2007 \u0026 STi 2004-2020","description":"\u003cp\u003eThe popular stock replacement TR TD05-20G turbo now comes in billet wheel. Potentially increasing performance from VF39 and TD04 turbo and at least 10% more efficient than the regular TD05-18G. The billet upgrade has a rating of 400HP, a truly perfect turbo for daily driving Subaru!\u003cbr\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"500\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd\u003eStandard Subaru 5-Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"100\" rowspan=\"2\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"36\"\u003eIn:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e50.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" rowspan=\"2\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eIn:\u003c\/td\u003e\n\u003ctd\u003e56 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx:\u003c\/td\u003e\n\u003ctd\u003e49.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\" colspan=\"2\"\u003eActuator:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e1.1 Bar \/ 16 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e8cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\" colspan=\"2\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e480 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2002-2007 WRX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2004-2020 STI\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 19.600000381469727px;\"\u003eTurbocharger\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eGaskets\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eActuator\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eOil Pipe\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eWater Pipe\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eHardware Kits\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar","offer_id":47808807207136,"sku":"TR-TS1018","price":1570.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar","offer_id":47808807239904,"sku":"TR-TS1018","price":1570.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/ts1018-1.jpg?v=1759277878"},{"product_id":"tr-gtx2971-stock-location-replacement-for-subaru-wrx-02-07-and-sti-04-21","title":"TR GTX2971 Stock Location Replacement for Subaru WRX 02-07 and STi 04-21","description":"\u003cp\u003eIntroducing the GTX2971! Featuring a ball-bearing cartridge, the GTX2971 allows for exceptionally crisp and strong throttle response just like that of its larger counterpart the GTX3076. Also packed with a billet compressor wheel, the overall weight of the wheel is lighter than other turbocharger wheels and allows for more room for air-flow. Thanks to the billet construction of the unique TR blades, durability goes unmatched, keeping the GTX2971 running through any condition. New to the TR GTX2971 and GTX3076 turbochargers are point-milled blades, which allow for reaching in all the small places between the blades to create a surface that provides maximum flow from the wheel design. In addition, the GTX2971 features a port and polished exhaust housing to minimize exhaust flow turbulence. This turbo is perfect for users who are looking for quick spooling and running moderate boost pressures. All necessary fittings and gaskets are included with purchase.\u003c\/p\u003e\n\u003ctable style=\"height: 297.869px;\" width=\"603\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.5966px;\"\u003e\n\u003ctd style=\"width: 149px; height: 35.5966px;\" bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e\u003cstrong\u003eBearing Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 149px; height: 35.5966px;\" bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003eBall-Bearing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5966px;\"\u003e\n\u003ctd style=\"width: 149px; height: 35.5966px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eFlange Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 35.5966px;\"\u003e\n\u003cp\u003eStandard Subaru 5-Bolts\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 37.6562px;\"\u003e\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 149px; height: 39.2046px;\" bgcolor=\"#CCCCCC\" rowspan=\"2\"\u003e\u003cstrong\u003eCompressor Wheel:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 149px; height: 19.6023px;\" bgcolor=\"#CCCCCC\"\u003eIn: 52.73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 149px; height: 19.6023px;\" bgcolor=\"#CCCCCC\"\u003eEx: 75 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 149px; height: 39.2046px;\" height=\"27\" rowspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eTurbine Wheel:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 192px; height: 19.6023px;\"\u003eIn: 55.63 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 192px; height: 19.6023px;\"\u003eEx: 52.33 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.4176px;\"\u003e\n\u003ctd style=\"width: 149px; height: 39.4176px;\" bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e\u003cstrong\u003eTurbine Housing:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 149px; height: 39.4176px;\" bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e10cm\u003csup\u003e2\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5966px;\"\u003e\n\u003ctd style=\"width: 149px; height: 35.5966px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eActuator:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 149px; height: 35.5966px;\"\u003e\n\u003cp\u003e1.1 bar \/ 16 psi\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5966px;\"\u003e\n\u003ctd style=\"width: 149px; height: 35.5966px;\" bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e\u003cstrong\u003eHorsepower:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 149px; height: 35.5966px;\" bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e500 HP\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003cbr\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2002 - 2007 Subaru WRX\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2004 - 2018 Subaru STi\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003eTurbocharger\u003cbr\u003eGaskets\u003cbr\u003eHardware Kit\u003cbr\u003eActuator\u003cbr\u003eOil Pipe\u003cbr\u003eWater Pipe\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar","offer_id":47808807272672,"sku":"TR-TS1045","price":1965.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar","offer_id":47808807305440,"sku":"TR-TS1045","price":1965.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/TR-TW1045_Web_Pic.jpg?v=1759277878"},{"product_id":"tr-billet-wheel-td05-16g-turbocharger-stock-replacement-for-subaru-wrx-2002-2007-sti-2004-2020","title":"TR Billet Wheel TD05-16G Turbocharger Stock Replacement for Subaru WRX 2002-2007 \u0026 STI 2004-2020 (TR-TS1024)","description":"\u003cp\u003eOne of the most popular TD05-16G replacement turbocharger now comes in billet compressor wheel. Supersize your mild upgrade from the factory VF turbo. The billet compressor wheel improves air flow by at least 10% over TD05-16G in standard compressor wheel which results in higher horse power capacity. The turbo comes with all fitting and gaskets, ready to bolt on out of the box. The best all around turbo upgrade just got better!\u003c\/p\u003e\n\u003ch3\u003eTurbo Characteristics:\u003c\/h3\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e Type:\u003c\/td\u003e\n\u003ctd\u003eTD05-16G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing:\u003c\/td\u003e\n\u003ctd\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange:\u003c\/td\u003e\n\u003ctd\u003eStandard Subaru 5 Bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor Diameter:\u003c\/td\u003e\n\u003ctd\u003eInlet = 48.3 mm | Outlet = 68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTurbine Diameter:\u003c\/td\u003e\n\u003ctd\u003eInlet = 56 mm | Outlet = 49.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTurbo Boost:\u003c\/td\u003e\n\u003ctd\u003e1.1 bar \/ 16 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Power:\u003c\/td\u003e\n\u003ctd\u003e400 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eAPPLICATIONS\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2002-2007 Subaru WRX\u003c\/li\u003e\n\u003cli\u003e2004-2020 Subaru STI\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKit Contents:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eActuator\u003c\/li\u003e\n\u003cli\u003eOil Pipe\u003c\/li\u003e\n\u003cli\u003eWater Pipe\u003c\/li\u003e\n\u003cli\u003eGaskets \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar","offer_id":47808807338208,"sku":"TR-TS1024","price":1265.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar","offer_id":47808807370976,"sku":"TR-TS1024","price":1265.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/frontforwebdsc_4715.jpg?v=1759277878"},{"product_id":"tr-gtx2971-twin-scroll-stock-replacement-for-subaru-wrx-02-07-and-sti-04-18","title":"TR GTX2971 Twin Scroll Stock Replacement for Subaru WRX 02-07 and STi 04-18","description":"\u003cp\u003eIntroducing the twin scroll GTX2971 for Subaru 02-07 WRX and 04-18 STi! Just like the GTX2971R,this twin scroll edition features a ball-bearing cartridge, billet compressor wheel , and 10\u003cspan\u003ecm\u003c\/span\u003e\u003csup\u003e2\u003c\/sup\u003e housing. Thanks to the billet compressor wheel the overall weight of the wheel is lighter than competing turbochargers and allows for maximum airflow throughout the unit with the help of point milling on each blade. A unique wheel and blade design, featuring a 20% larger wheel with 17% longer blades than the factory turbocharger. In addition, the GTX2971 features a port and polished exhaust housing to minimize exhaust flow turbulence. All hardware is included with purchase.\u003c\/p\u003e\n\u003cp\u003eThis is the ultimate replacement for Twinscroll VF36 VF37 and VF38 \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE\u003c\/strong\u003e: This turbocharger requires the usage of twin scroll headers and downpipe.\u003c\/p\u003e\n\u003ctable width=\"603\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e\u003cstrong\u003eBearing Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003eBall-Bearing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFlange Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eStandard Subaru 5-Bolts\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" rowspan=\"2\"\u003e\u003cstrong\u003eCompressor Wheel:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eIn: 54 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx: 72 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" rowspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eTurbine Wheel:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eIn: 60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx: 57 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e\u003cstrong\u003eTurbine Housing:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e10cm\u003csup\u003e2\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eActuator:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e1.1 bar \/ 16 psi\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e\u003cstrong\u003eHorsepower:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e550 HP\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 99.915%; height: 469.454px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003cth style=\"width: 26.9684%; height: 39.2045px;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"width: 32.992%; height: 39.2045px;\"\u003eTR-TS1047 Twin Scroll GTX2971\u003c\/th\u003e\n\u003cth style=\"width: 36.4684%; height: 39.2045px;\"\u003eTR-TS1027 Tomioka Racing TD06-20G Billet\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 26.9684%; height: 39.2045px;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"width: 32.992%; height: 39.2045px;\"\u003e2002-2007 WRX, 2004-2018 STi\u003c\/td\u003e\n\u003ctd style=\"width: 36.4684%; height: 39.2045px;\"\u003e2002-2007 WRX, 2004-2020 STI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 26.9684%; height: 19.6023px;\"\u003eBearing Type\u003c\/td\u003e\n\u003ctd style=\"width: 32.992%; height: 19.6023px;\"\u003eBall-Bearing\u003c\/td\u003e\n\u003ctd style=\"width: 36.4684%; height: 19.6023px;\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 26.9684%; height: 39.2045px;\"\u003eCompressor Wheel Material\u003c\/td\u003e\n\u003ctd style=\"width: 32.992%; height: 39.2045px;\"\u003eBillet\u003c\/td\u003e\n\u003ctd style=\"width: 36.4684%; height: 39.2045px;\"\u003eBillet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 26.9684%; height: 39.2045px;\"\u003eCompressor Wheel Size (mm)\u003c\/td\u003e\n\u003ctd style=\"width: 32.992%; height: 39.2045px;\"\u003eIn: 54, Ex: 72\u003c\/td\u003e\n\u003ctd style=\"width: 36.4684%; height: 39.2045px;\"\u003eIn: 52, Ex: 68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 26.9684%; height: 39.2045px;\"\u003eTurbine Wheel Size (mm)\u003c\/td\u003e\n\u003ctd style=\"width: 32.992%; height: 39.2045px;\"\u003eIn: 60, Ex: 57\u003c\/td\u003e\n\u003ctd style=\"width: 36.4684%; height: 39.2045px;\"\u003eIn: 61, Ex: 54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 26.9684%; height: 19.6023px;\"\u003eTurbine Housing Size\u003c\/td\u003e\n\u003ctd style=\"width: 32.992%; height: 19.6023px;\"\u003e10cm2\u003c\/td\u003e\n\u003ctd style=\"width: 36.4684%; height: 19.6023px;\"\u003e8cm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 26.9684%; height: 39.2045px;\"\u003eWeight of Compressor Wheel\u003c\/td\u003e\n\u003ctd style=\"width: 32.992%; height: 39.2045px;\"\u003eLighter than competing turbos\u003c\/td\u003e\n\u003ctd style=\"width: 36.4684%; height: 39.2045px;\"\u003e10% improvement over standard wheel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 26.9684%; height: 39.2045px;\"\u003eWheel and Blade Design\u003c\/td\u003e\n\u003ctd style=\"width: 32.992%; height: 39.2045px;\"\u003e20% larger wheel, 17% longer blades\u003c\/td\u003e\n\u003ctd style=\"width: 36.4684%; height: 39.2045px;\"\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 26.9684%; height: 39.2045px;\"\u003eExhaust Housing\u003c\/td\u003e\n\u003ctd style=\"width: 32.992%; height: 39.2045px;\"\u003ePort and polished to minimize turbulence\u003c\/td\u003e\n\u003ctd style=\"width: 36.4684%; height: 39.2045px;\"\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 26.9684%; height: 39.2045px;\"\u003eMaximum Horsepower Support\u003c\/td\u003e\n\u003ctd style=\"width: 32.992%; height: 39.2045px;\"\u003e550 HP\u003c\/td\u003e\n\u003ctd style=\"width: 36.4684%; height: 39.2045px;\"\u003e530 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 38.2045px;\"\u003e\n\u003ctd style=\"width: 26.9684%; height: 38.2045px;\"\u003eSpool Characteristics\u003c\/td\u003e\n\u003ctd style=\"width: 32.992%; height: 38.2045px;\"\u003eTwin-scroll design for optimal spooling\u003c\/td\u003e\n\u003ctd style=\"width: 36.4684%; height: 38.2045px;\"\u003eFast spool, ideal for maintaining high HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 26.9684%; height: 39.2045px;\"\u003eInstallation\u003c\/td\u003e\n\u003ctd style=\"width: 32.992%; height: 39.2045px;\"\u003eRequires twin-scroll headers and downpipe\u003c\/td\u003e\n\u003ctd style=\"width: 36.4684%; height: 39.2045px;\"\u003e100% bolt-on\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e2002 - 2007 Subaru WRX\u003cbr\u003e2004 - 2018 Subaru STi\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003eTurbocharger\u003cbr\u003eGaskets\u003cbr\u003eHardware Kit\u003cbr\u003eActuator\u003cbr\u003eOil Pipe\u003cbr\u003eWater Pipe\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar","offer_id":47808807403744,"sku":"TR-TS1047-1.1","price":1965.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar","offer_id":47808807436512,"sku":"TR-TS1047-1.3","price":1965.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/TR-TW1047_Web_Pic.jpg?v=1759277878"},{"product_id":"tr-billet-wheel-td06-20g-turbocharger-for-nissan-sr20det-s13-s14-s15","title":"TR Billet Wheel TD06-20G Turbocharger for Nissan SR20DET S13\/S14\/S15","description":"\u003cp\u003eNissan SR20 turbocharger now comes with billet compressor wheel to improve performance. Styled in TD06-20G size, the billet compressor wheel improves air flow by at least 10% from standard TD06-20G. TR SR20 turbocharger is perfect for drivers looking for low to mid-range power and torque response. This turbo is 100% bolt-on and designed for street and weekend track use. The turbocharger includes billet wastegate actuator for boost stability plus all the hardware needed for installation.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ctable width=\"500\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eModel\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eTD06-20G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eTR-TN1000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#CCCCCC\"\u003e\u003cspan class=\"style3\"\u003eBearing \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\u003cspan class=\"style3\"\u003eJournal\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange\u003c\/td\u003e\n\u003ctd\u003eT25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\"\u003eActuator\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e1.1 BAR \/ 16 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"100\" rowspan=\"2\"\u003eCompressor Diameter\u003c\/td\u003e\n\u003ctd width=\"36\"\u003eIn:\u003c\/td\u003e\n\u003ctd width=\"364\"\u003e52.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx:\u003c\/td\u003e\n\u003ctd width=\"364\"\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\" rowspan=\"2\"\u003e\n\u003cp\u003eTurbine Diameter\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eIn:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e61 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e54 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\"\u003eMaximum Power\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e520 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCharacteristics:\u003c\/strong\u003e\u003cbr\u003e•10% More Air Flow\u003cbr\u003e•Billet Compressor Wheel\u003cbr\u003e•Billet Wastegate Actuator \u003cbr\u003e•100% Bolt-On\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003cbr\u003e• Turbocharger \u003cbr\u003e• Actuator \u003cbr\u003e• Oil \u0026amp; Water Pipe \u003cbr\u003e• Gaskets\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808807469280,"sku":"TR-TN1000","price":1645.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/dsc_3480_fam_reg_size.jpg?v=1759277879"},{"product_id":"tr-td06-20g-jdm-twin-scroll-turbo-kit-for-subaru-wrx-2002-2007-sti-2004-2020","title":"TR TD06-20G JDM Twin Scroll Turbo Kit for Subaru WRX 2002-2007 \u0026 STi 2004-2020","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: x-small;\"\u003e** Attention: All of our turbocharger now comes with billet wastegate actuator. The brass wastegate actuator will be phased out. Picture(s) of turbo or turbo kit(s) with the brass wastegate actuator will be replaced as soon as the new picture(s) become available. If you have any questions, please contact us ** \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eTomioka Racing Twin Scroll Turbo line is catered to the die-hard Subaru fans! The twin scroll turbo is an efficient and economical way to replace or upgrade your current twin scroll setup on your Subaru. Twin Scroll Turbos are increasingly hard to find these days, with the Tomioka Turbo they are a direct bolt-on, featuring equal length twin-scroll downpipe and also boast more boost power than the standard VF series turbo. With TD06 housing and twin-scroll set-up, Tomioka Turbo improves spool time compared to the standard TD06 turbo! \u003cbr\u003e\u003cbr\u003eCheck out the available video and dyno graph on this turbo. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable style=\"height: 198.58px;\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"height: 19.6023px;\" colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd style=\"height: 19.6023px;\" bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"height: 19.6023px;\" colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd style=\"height: 19.6023px;\"\u003eSubaru JDM Twin Scroll 5-Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"height: 39.2046px;\" rowspan=\"2\" width=\"100\" bgcolor=\"#CCCCCC\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd style=\"height: 19.6023px;\" width=\"36\" bgcolor=\"#CCCCCC\"\u003eIn:\u003c\/td\u003e\n\u003ctd style=\"height: 19.6023px;\" width=\"364\" bgcolor=\"#CCCCCC\"\u003e51 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"height: 19.6023px;\" bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd style=\"height: 19.6023px;\" width=\"364\" bgcolor=\"#CCCCCC\"\u003e58 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"height: 39.2046px;\" rowspan=\"2\" height=\"27\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 19.6023px;\"\u003eIn:\u003c\/td\u003e\n\u003ctd style=\"height: 19.6023px;\"\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"height: 19.6023px;\"\u003eEx:\u003c\/td\u003e\n\u003ctd style=\"height: 19.6023px;\"\u003e56 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.9886px;\"\u003e\n\u003ctd style=\"height: 26.9886px;\" colspan=\"2\" height=\"27\" bgcolor=\"#CCCCCC\"\u003eActuator:\u003c\/td\u003e\n\u003ctd style=\"height: 26.9886px;\" height=\"27\" bgcolor=\"#CCCCCC\"\u003e1.1 Bar \/ 16 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.9886px;\"\u003e\n\u003ctd style=\"height: 26.9886px;\" colspan=\"2\" height=\"27\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd style=\"height: 26.9886px;\" height=\"27\"\u003e8 cm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.9886px;\"\u003e\n\u003ctd style=\"height: 26.9886px;\" colspan=\"2\" height=\"27\" bgcolor=\"#CCCCCC\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd style=\"height: 26.9886px;\" height=\"27\" bgcolor=\"#CCCCCC\"\u003e500 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApplications: (This JDM kit would apply to the following models.)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2002-2007  WRX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2004-2020  STi\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e• TR-TS1015 Twin Scroll Turbo\u003cbr\u003e• TR-ES1002 Twin Scroll Exhaust Manifold with 3-Bolt Uppipe\u003cbr\u003e• TR-ES1005 Twin Scroll Downpipe\u003cbr\u003e• Turbo Mounting Bracket\u003cbr\u003e• Hardware kits\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808807567584,"sku":"TR-TS1012","price":3235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/dsc_3500.jpg?v=1759277878"},{"product_id":"tr-td05-20g-bolt-on-turbo-stock-replacement-for-subaru-wrx-2002-2007-sti-2004-2020","title":"TR TD05-20G Bolt On Turbo Stock Replacement for Subaru WRX 2002-2007 \u0026 STI 2004-2020","description":"\u003cp\u003eBy far the most popular turbo for Subaru ! If you are looking for a street\/track turbo look no further, the TR TD05-20G turbo makes a excellent street and track turbo. This turbo is capable of up to 400WHP and maintain a street drivability when you are off the track. With a larger wheel blades then the TR TD05-18G this turbo can handle mid to high end horsepower without increasing the lag time on the turbo when compared to stock. The turbo comes with all fitting and gaskets, ready to bolt on out of the box. \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eTurbo Characteristics:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"0\" border=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd\u003eStandard Subaru 5-Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" rowspan=\"2\" width=\"100\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"36\"\u003eIn:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e52.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" height=\"27\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eIn:\u003c\/td\u003e\n\u003ctd\u003e56 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx:\u003c\/td\u003e\n\u003ctd\u003e49.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\" height=\"27\"\u003eActuator:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e1.1 Bar \/ 16 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" height=\"27\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e8 cm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\" height=\"27\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e450 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAPPLICATIONS\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2002-2007 WRX \u003c\/li\u003e\n\u003cli\u003e2004-2020 STI \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eTurbocharger\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eActuator\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eOil Pipe\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eWater Pipe\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eGaskets\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eHardware kits\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar","offer_id":47808807502048,"sku":"TR-TS1001","price":1405.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar","offer_id":47808807534816,"sku":"TR-TS1001","price":1405.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/dsc_13687_2.jpg?v=1759277878"},{"product_id":"tr-td06-20g-twin-scroll-turbo-kit-for-sti-2008-2020","title":"TR TD06-20G Twin Scroll Turbo Kit for STI 2008-2020","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: x-small;\"\u003e** Attention: All of our turbocharger now comes with billet wastegate actuator. The brass wastegate actuator will be phased out. Picture(s) of turbo or turbo kit(s) with the brass wastegate actuator will be replaced as soon as the new picture(s) become available. If you have any questions, please contact us ** \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eTomioka Racing Twin Scroll Turbo line is catered to the die-hard Subaru fans! The twin scroll turbo is an efficient and economical way to replace or upgrade your current twin scroll set up on your Subaru. Twin Scroll Turbo are increasingly hard to find these days, with the Tomioka Turbo they are direct bolt-on, featuring USDM length twin-scroll downpipe and also boast more boost power than the standard VF series turbo. With TD06 housing and twin-scroll set-up, Tomioka Turbo improves spool time compared to the standard TD06 turbo! \u003cbr\u003e\u003cbr\u003eCheck out the available video and dyno graph on this turbo. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"0\" border=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd\u003eStandard Subaru 5-Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" rowspan=\"2\" width=\"100\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"36\"\u003eIn:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e51 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e58 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" height=\"27\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eIn:\u003c\/td\u003e\n\u003ctd\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx:\u003c\/td\u003e\n\u003ctd\u003e56 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\" height=\"27\"\u003eActuator:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e1 Bar \/ 14.7 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" height=\"27\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e8 cm\u003csup\u003e2\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\" height=\"27\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e500 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2008-2020 STI\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e• Twin Scroll Turbo\u003cbr\u003e• Twin Scroll Manifold\u003cbr\u003e• 3-Bolt Uppipe\u003cbr\u003e• Twin Scroll USDM Downpipe\u003cbr\u003e• Bracket\u003cbr\u003e• Hardware kits\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808807600352,"sku":"TR-TS1013","price":3235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/tr-ts1013_1.jpg?v=1759277879"},{"product_id":"tr-tw2001-turbo-for-bmw-n55","title":"TR TW2001 Turbo for BMW N55","description":"\u003cp\u003eIntroducing Tomioka Racing’s turbocharger upgrade for the BMW N55 engine. TR’s turbo offers a billet compressor wheel in 6+6 configuration and a larger wheel compared to the factory turbo. The increase in diameter is further matched with larger porting of the interior of the factory-sized compressor housing. It looks like a factory turbo, but contains a larger 72mm compressor wheel and longer 35mm wheel-blade to improve airflow and extract more power from the N55 motor, achieving more efficient boost. No Core exchange is required. This is a 100% bolt-on balanced replacement turbo with improved performance over the stock unit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e*Note that this turbo only fits vehicle model with Pneumatic Wastegate (PWG).\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e**This turbo is on special order with a 3-4 week wait period upon purchase.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eTurbo Characteristics:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable width=\"500\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eStandard BMW Header Bolt-On\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor Wheel:\u003c\/td\u003e\n\u003ctd\u003e72mm Billet Compressor Wheel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"100\"\u003eTurbine Wheel\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e\n\u003cp\u003eIn: 50mm\u003c\/p\u003e\n\u003cp\u003eEx: 48mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\"\u003e\n\u003cp\u003eTurbine Housing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eStandard (OEM Machined) - Includes Ported and Polished Inlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003eMax Power:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e450 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFeatures:\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 1.4em;\"\u003e100% Bolt-On\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eLarge Billet Compressor Wheel \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 1.4em;\"\u003e72mm Compressor Wheel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 1.4em;\"\u003ePorted and Polished Inlet \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 1.4em;\"\u003e35mm Wheel-Blade Length \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eStock Location\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"text-decoration: underline; font-size: 1.4em;\"\u003eKit Contents:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eTurbocharger\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"5W30 2L","offer_id":47808807698656,"sku":"TR-TW2001","price":1550.0,"currency_code":"USD","in_stock":true},{"title":"5W40 2L","offer_id":47808807731424,"sku":"TR-TW2001-5w40","price":1550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/TR-TW2001_Web_Pic.jpg?v=1759277879"},{"product_id":"tr-sigma-billet-wheel-turbo-for-mitsubishi-evo","title":"TR Sigma Billet Wheel Turbo for Mitsubishi EVO","description":"\u003cp\u003e\u003cspan\u003eTomioka Racing Sigma turbo for Mitsubishi Evolution X now comes in Billet compressor wheel! The billet compressor wheel guarantees more flow than the standard compressor wheel and delivers more power capacity for the turbo. This turbo is designed for mid to high power band and great for street and track applications. The turbo still features the larger 3-inch inlet for higher and optimum air fl­ow. The turbine housing comes fully ported and polished for even faster fl­ow! The turbo includes an upgraded billet internal wastegate actuator with high pressure spring for maximum performance and quality above all else!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"0\" border=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\"\u003e\n\u003cp\u003eBearing Type:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFFF\" rowspan=\"2\" width=\"100\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFFF\" width=\"36\"\u003eIn:\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFFF\" width=\"364\"\u003e61.4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFFF\"\u003eEx:\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFFF\" width=\"364\"\u003e82 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" rowspan=\"2\" height=\"27\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eIn:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e67.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e58.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFFF\" colspan=\"2\" height=\"27\"\u003eActuator:\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFFF\" height=\"27\"\u003e1.5 Bar \/ 21 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\" height=\"27\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e12 cm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#FFFFFF\" colspan=\"2\" height=\"27\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd bgcolor=\"#FFFFFF\" height=\"27\"\u003e600 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e• Turbocharger\u003cbr\u003e• Actuator\u003cbr\u003e• Oil Pipe\u003cbr\u003e• Water Pipe\u003cbr\u003e• Gaskets\u003cbr\u003e• Hardware kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"0\" border=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e\u003cspan class=\"style10\"\u003eMitsubishi Evolution X GSR\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\"\u003e\u003cspan class=\"style10\"\u003eMitsubishi Evolution X MR\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808807665888,"sku":"TR-TM1014","price":2315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/dsc_4184_front_for_web.jpg?v=1759277879"},{"product_id":"tr-td05-20g-bolt-on-turbo-stock-replacement-for-subaru-wrx-08-14-forester-09-13-legacy-gt-05-09-flange-outlet","title":"TR TD05-20G Bolt On Turbo Stock Replacement for Subaru WRX 08-14, Forester 09-13 \u0026 Legacy GT 05-09 Flange Outlet (TR-TS1005)","description":"\u003cp\u003eBy far the most popular turbo for Subaru ! If you are looking for a street\/track turbo look no further, the TR TD05-20G turbo makes a excellent street and track turbo. This turbo is capable of up to 400WHP and maintain a street drivability when you are off the track. With a larger wheel blades then the TR TD05-18G this turbo can handle mid to high end horsepower without increasing the lag time on the turbo when compared to stock. The turbo comes with all fitting and gaskets, ready to bolt on out of the box. \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003c\/b\u003e\u003cbr\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"500\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd\u003eStandard Subaru 5-Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"100\" rowspan=\"2\" bgcolor=\"#CCCCCC\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd width=\"36\" bgcolor=\"#CCCCCC\"\u003eIn:\u003c\/td\u003e\n\u003ctd width=\"364\" bgcolor=\"#CCCCCC\"\u003e52.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd width=\"364\" bgcolor=\"#CCCCCC\"\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" rowspan=\"2\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eIn:\u003c\/td\u003e\n\u003ctd\u003e56 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx:\u003c\/td\u003e\n\u003ctd\u003e49.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eActuator:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003e1.1 Bar \/ 16 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e8 cm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003e450 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAPPLICATIONS\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2008-2014 WRX\u003c\/li\u003e\n\u003cli\u003e2009-2013 Forester\u003c\/li\u003e\n\u003cli\u003e2005-2009 Legacy GT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eTurbocharger\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eActuator\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eOil Pipe\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eWater Pipe\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eGaskets\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eHardware kits\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar \/ 5W30 2L","offer_id":47808807764192,"sku":"TR-TS1005-5w30","price":1405.0,"currency_code":"USD","in_stock":true},{"title":"1.1 bar \/ 5W40 2L","offer_id":47808807796960,"sku":"TR-TS1005-5w40","price":1405.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar \/ 5W30 2L","offer_id":47808807829728,"sku":"TR-TS1005-5w30","price":1405.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar \/ 5W40 2L","offer_id":47808807862496,"sku":"TR-TS1005-5w40","price":1405.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/ts1017-hires-crop-2_4_184541f4-8182-4d87-8582-a60ef084511f.jpg?v=1779211879"},{"product_id":"tr-billet-td05-18g-bolt-on-turbo-stock-replacement-for-subaru-impreza-2008-2014-legacy-gt-2005-2008-and-forester-sh5-9-2008","title":"TR Billet TD05-18G Bolt On Turbo Stock Replacement for Subaru Impreza 2008-2014, Legacy GT 2005-2008  and Forester SH5\/9 2008","description":"\u003cp\u003eThe popular stock replacement TR TD05-18G turbo now comes in billet wheel. Potentially increasing performance from VF39 and TD04 turbo and at least 10% more efficient than the regular TD05-18G. The billet upgrade has a rating of 400HP, a truly perfect turbo for daily driving Subaru!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTurbo Characteristics:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" border=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd\u003eStandard Subaru 5-Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" bgcolor=\"#CCCCCC\" width=\"100\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"36\"\u003eIn:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e50.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" height=\"27\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eIn:\u003c\/td\u003e\n\u003ctd\u003e56 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx:\u003c\/td\u003e\n\u003ctd\u003e49.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#CCCCCC\" height=\"27\"\u003eActuator:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e1.1 Bar \/ 16 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" height=\"27\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e7cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#CCCCCC\" height=\"27\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e400 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2008-2014 Subaru WRX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2008 Subaru Forester SH5\/9\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2005-2008 Legacy GT\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"text-decoration: underline; font-size: 1.4em;\"\u003eKit Contents\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eGaskets\u003c\/li\u003e\n\u003cli\u003eActuator\u003c\/li\u003e\n\u003cli\u003eOil Pipe\u003c\/li\u003e\n\u003cli\u003eWater Pipe\u003c\/li\u003e\n\u003cli\u003eHardware Kits\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE: Professional installation is recommended.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar","offer_id":47808807895264,"sku":"TR-TS1020","price":1265.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar","offer_id":47808807928032,"sku":"TR-TS1020-1.3","price":1265.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/TR-TS1020_1__620x600_e28bf702-468d-45c8-b9a8-06e2f8cf41cc.jpg?v=1759277878"},{"product_id":"tr-ihx475-turbo-upgrade-for-vw-audi-ea888-gen-3-mqb","title":"TR IHX475 - Turbo Upgrade for VW \/ AUDI EA888 Gen 3 (MQB)","description":"\u003cp\u003eThe perfect bolt-on upgrade to make big power while retaining the original intake, downpipe, and intercooler! Derived from a stock IS38 housing from the \u003cstrong\u003eVW MKVII Golf R\u003c\/strong\u003e and \u003cstrong\u003eAudi S3\u003c\/strong\u003e, Tomioka Racing increased the factory housing velocity volume in order to house larger and better bearings, compressor wheel, and turbine.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThis turbocharger is completely new and manufactured from the ground up.\u003c\/em\u003e Rather than putting new internals in a stock IS38 housing, Tomioka Racing constructed their own housing to use with the custom internals, proving beneficial as all defects with the stock IS38 internals and housing have been corrected such as housing cracking and stock shaft breaking.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eIHX475\u003c\/strong\u003e is the next step up for making power with the \u003cstrong\u003eVAG MQB platform modular chassis\u003c\/strong\u003e and \u003cstrong\u003eEA888 1.8T\/2.0T engines\u003c\/strong\u003e. Thanks to a re-engineered billet compressor wheel, the IHX475 is able to deliver more power with a quicker response than a stock Golf R\/S3 turbocharger, maintaining its durability in high boost situations. Created for longevity with strict tolerances, the turbocharger is VSR balanced at high speeds.\u003c\/p\u003e\n\u003cp\u003eTo aid the turbo in making power, included with the kit is an upgraded Aluminum Turbo Inlet Pipe and full billet CNC machined Diverter Valve. The \u003cstrong\u003eIHX475 Turbocharger\u003c\/strong\u003e features a lightweight stainless steel loss wax finished exhaust housing as opposed to the cast iron housing of the standard IS38. This allows the IHX475 to be lighter than the IS38 overall and have better heat retention. The IHX475 can also be mated to fit in the EA888 Porsche Macan Turbo.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"rte__table-wrapper\"\u003e\n\u003ctable width=\"603\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e\u003cstrong\u003eBearing Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003eJournal-Bearing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFlange Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eVAG\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\u003cstrong\u003eCompressor Wheel:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eIn: 52.56mm | Ex: 68mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTurbine Housing:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e7cm\u003csup\u003e2\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e\u003cstrong\u003eTurbine Wheel:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003eIn: 60mm | Ex: 54mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHorsepower:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e475 HP\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eProduct Compatibility\u003c\/h2\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"#CCCCCC\"\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003e Vehicle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eSubmodel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAudi\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e8V S3\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eQuattro\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eA3 8V\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eFWD\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eA3 8V\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eQuattro\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eTT\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eMK3 (2014+)\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eTTS\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eMK3 (2014+)\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eVW\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eGolf MKVII\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eGTI\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eGolf MKVII\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eHatchback\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eGolf MKVII\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eSportwagen Gen3\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eGolf MKVII\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eR\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSeat\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eLeon\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eMK3\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eLeon\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eMK3\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eCupra\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eTyp 5F\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eCupra\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eTyp 5F\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSkoda\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eOctavia\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eMK3\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eOctavia\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eMK3\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003evRS\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eTyp 5E\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003evRS\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eTyp 5E\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight Stainless Steel Exhaust Housing\u003c\/li\u003e\n\u003cli\u003eLarger compressor wheel and exhaust turbine\u003c\/li\u003e\n\u003cli\u003eLarger and stronger center shaft\u003c\/li\u003e\n\u003cli\u003eBetter heat retention\u003c\/li\u003e\n\u003cli\u003eVSR Balanced\u003c\/li\u003e\n\u003cli\u003eCompatible with IS20 and IS38 wastegate\/diverter valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKit Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eGaskets\u003c\/li\u003e\n\u003cli\u003eHardware Kit\u003c\/li\u003e\n\u003cli\u003eBlack Aluminum Turbo Inlet Pipe\u003c\/li\u003e\n\u003cli\u003eStock Diverter Valve Adapter Kit\u003c\/li\u003e\n\u003cli\u003eTurbocharger Muffler Delete\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTurbo Only Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eGaskets\u003c\/li\u003e\n\u003cli\u003eHardware Kit\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Turbo Only","offer_id":47808808124640,"sku":"TR-TW1003","price":2185.0,"currency_code":"USD","in_stock":true},{"title":"Turbo Kit","offer_id":47808808157408,"sku":"TR-TW1002","price":2420.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/tomioka-racing-IHX475-turbo-Kit-1.jpg?v=1759277879"},{"product_id":"tr-ihx600-turbo-upgrade-for-vw-audi-ea888-gen-3-mqb","title":"TR IHX600 - Turbo Upgrade For VW \/ AUDI EA888 Gen 3 (MQB)","description":"\u003cp\u003eBigger is better. With the success of the \u003ca href=\"https:\/\/www.tomiokaracing.com\/products\/tr-ihx475-turbo-kit-for-vw-audi-mqb-ea888\"\u003eIHX475\u003c\/a\u003e for the \u003cstrong\u003eVW \/ Audi EA888 MQB Engine\u003c\/strong\u003e, we have released the larger \u003cstrong\u003eIHX600 turbo kit\u003c\/strong\u003e. With a larger housing area in the IHX600, \u003cem\u003ethe turbo kit will aid the motor in delivering a powerful 600 HP\u003c\/em\u003e. True to its form, the IHX600 turbocharger will still be 100% bolt-on. This turbocharger is still completely new and manufactured from the ground up.\u003c\/p\u003e\n\u003cp\u003eRather than putting new internals in a stock IS38 housing, we constructed our own housing to use with the custom internals, proving beneficial as all defects with the stock IS38 internals and housing have been corrected such as housing cracking and stock shaft breaking.\u003c\/p\u003e\n\u003cp\u003eThe IHX600 is the next step up for making power with the \u003cstrong\u003eVAG MQB platform modular chassis\u003c\/strong\u003e and \u003cstrong\u003eEA888 1.8T\/2.0T engines\u003c\/strong\u003e. Thanks to a re-engineered billet compressor wheel, the IHX600 is able to deliver more power, maintaining its durability in high boost situations. Created for longevity with strict tolerances, the turbocharger is also VSR balanced at high speeds.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specification\u003c\/h2\u003e\n\u003cdiv class=\"rte__table-wrapper\"\u003e\n\u003cdiv class=\"rte__table-wrapper\"\u003e\n\u003ctable width=\"603\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e\u003cstrong\u003eBearing Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003eJournal-Bearing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFlange Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eVAG\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\u003cstrong\u003eCompressor Wheel:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eIn: 52.56mm | Ex: 68mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTurbine Housing:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e9cm\u003csup\u003e2\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e\u003cstrong\u003eTurbine Wheel:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003eIn: 60mm | Ex: 54mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHorsepower:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e600 HP\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eProduct Compatibility\u003c\/h2\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"#CCCCCC\"\u003e\n\u003ctd\u003e\u003cstrong\u003e Vehicle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSubmodel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi\u003c\/td\u003e\n\u003ctd\u003e8V S3\u003c\/td\u003e\n\u003ctd\u003eQuattro\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eA3 8V\u003c\/td\u003e\n\u003ctd\u003eFWD\u003c\/td\u003e\n\u003ctd\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eA3 8V\u003c\/td\u003e\n\u003ctd\u003eQuattro\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eTT\u003c\/td\u003e\n\u003ctd\u003eMK3 (2014+)\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eTTS\u003c\/td\u003e\n\u003ctd\u003eMK3 (2014+)\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVW\u003c\/td\u003e\n\u003ctd\u003eGolf MKVII\u003c\/td\u003e\n\u003ctd\u003eGTI\u003c\/td\u003e\n\u003ctd\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eGolf MKVII\u003c\/td\u003e\n\u003ctd\u003eHatchback\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eGolf MKVII\u003c\/td\u003e\n\u003ctd\u003eSportwagen Gen3\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eGolf MKVII\u003c\/td\u003e\n\u003ctd\u003eR\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eLeon\u003c\/td\u003e\n\u003ctd\u003eMK3\u003c\/td\u003e\n\u003ctd\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eLeon\u003c\/td\u003e\n\u003ctd\u003eMK3\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eCupra\u003c\/td\u003e\n\u003ctd\u003eTyp 5F\u003c\/td\u003e\n\u003ctd\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eCupra\u003c\/td\u003e\n\u003ctd\u003eTyp 5F\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSkoda\u003c\/td\u003e\n\u003ctd\u003eOctavia\u003c\/td\u003e\n\u003ctd\u003eMK3\u003c\/td\u003e\n\u003ctd\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eOctavia\u003c\/td\u003e\n\u003ctd\u003eMK3\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003evRS\u003c\/td\u003e\n\u003ctd\u003eTyp 5E\u003c\/td\u003e\n\u003ctd\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003evRS\u003c\/td\u003e\n\u003ctd\u003eTyp 5E\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEnlarged Lightweight Stainless Steel Exhaust Housing\u003c\/li\u003e\n\u003cli\u003eLarger compressor wheel and exhaust turbine\u003c\/li\u003e\n\u003cli\u003eLarger and stronger center shaft\u003c\/li\u003e\n\u003cli\u003eBetter heat retention\u003c\/li\u003e\n\u003cli\u003eVSR Balanced\u003c\/li\u003e\n\u003cli\u003eCompatible with IS20 and IS38 wastegate\/diverter valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eKit Contents\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eGaskets\u003c\/li\u003e\n\u003cli\u003eHardware Kit\u003c\/li\u003e\n\u003cli\u003eBlack Aluminum Turbo Inlet Pipe\u003c\/li\u003e\n\u003cli\u003eStock Diverter Valve Adapter Kit\u003c\/li\u003e\n\u003cli\u003eTurbocharger Muffler Delete\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eTurbo Only Contents\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eGaskets\u003c\/li\u003e\n\u003cli\u003eHardware Kit\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Turbo Kit","offer_id":47808807960800,"sku":"TR-TW1005","price":2895.0,"currency_code":"USD","in_stock":true},{"title":"Turbo Only","offer_id":47808807993568,"sku":"TR-TW1006","price":2650.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/tr-ihx600-turbo-kit-product-overview-image.jpg?v=1759277878"},{"product_id":"tr-supra-750-for-2020-toyota-gr-supra-a90-1","title":"TR Supra 750 for 2020+ Toyota GR Supra A90","description":"\u003cp\u003eOur latest release for the 2020+ Toyota GR Supra A90. Sporting an overall 20% larger compressor wheel over the factory turbo and using the original Borg Warner housings, we further improved the aerodynamic and bearing system to unleash the true power from the B58 power plant. Rated for 750 HP, this turbo will bring the best out of the hotly anticipated Toyota GR Supra.\u003c\/p\u003e\n\u003ctable width=\"954\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eBearing Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eJournal Bearing\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFlange Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eStandard BMW\/Toyota B58\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eCompressor:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eIn: 59mm \/ Ex: 63mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eActuator:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eStock diverter valve\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eHorsepower:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e750 HP\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e \u003cstrong\u003eFeatures:\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e20% Larger Compressor Wheel\u003c\/li\u003e\n\u003cli\u003eBillet Compressor Wheel 6+6 \u003c\/li\u003e\n\u003cli\u003e100% Bolt-On\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cspan\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2020+ Toyota GR Supra (A90)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cspan\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eGaskets\u003c\/li\u003e\n\u003cli\u003eInlet Pipe\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCore charge:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cem\u003eYou have the option to send in your original turbocharger upon purchase. If sending in your core unit, the TR turbo will not be shipped until the core unit is received. Additionally, you may keep your stock unit and we will have to assess a core charge of $1680, with which your order will ship immediately.\u003c\/em\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Yes","offer_id":47808808059104,"sku":"TR-TT1000","price":2810.0,"currency_code":"USD","in_stock":true},{"title":"No [+$1680]","offer_id":47808808091872,"sku":"TR-TT1000-CORE","price":4490.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/TR-TT1000_1__WEB_1796b874-c56e-4a6a-84ba-cd2b95b05b99.jpg?v=1759277878"},{"product_id":"tr-tw2000-turbo-pneumatic-wastegate-for-bmw-n20-n26","title":"TR TW2000 Turbo (Pneumatic Wastegate) for BMW N20\/N26","description":"\u003cp\u003eIntroducing the Tomioka Racing turbocharger upgrade for the BMW N20\/N26 engine. TR’s turbo offers a billet compressor wheel and larger wheel compared to the factory turbo. The increase in diameter is further matched with larger porting of the interior of the factory-sized compressor housing. From the outside, it looks like a factory turbo but rather it has improved airflow from the larger 60mm wheel diameter and longer 30mm wheel-blade to extract more power from the N20\/N26, achieving more effective boost. There is no core exchange required for this turbo. This is 100% bolt-on and balanced replacement turbo with improved performance over the factory turbo. This is a perfect turbo upgrade for users who are looking to get more kick from the N20\/N26 motor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e* Note: This turbo only fits vehicle with Pneumatic Wastegate version* \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eTurbo Characteristics:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable width=\"500\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eStandard BMW Header Bolt-On\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor Wheel:\u003c\/td\u003e\n\u003ctd\u003eBillet Compressor Wheel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"100\"\u003eTurbine Wheel\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"364\"\u003e60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\"\u003e\n\u003cp\u003eTurbine Housing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eStandard (OEM Machined) - Includes Ported and Polished Inlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003eMax Power:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e345HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eApplication: \u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e3 Series:\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eF30 \/ F31 \/ F34 (2012+)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e328iF30 \/ F31 \/ F34 (2012+)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e328i xDrive\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e4 Series:\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eF32 \/ F33 \/ F36 (2014+)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e428iF32 \/ F33 \/ F36 (2014+)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e428i xDrive\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e5 Series:\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eF10 \/ F11 (2011-2016)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e528i N20 (2012-2016)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e528i xDrive N20 (2012-2016)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eX1 Series:\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eE84 X1 (2013-2015)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eX1 28iE84 X1 (2013-2015)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eX1 28i xDrive\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eX3 Series:\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eF25 X3 (2011-2017)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eX3 sDrive28i F25 X3 (2011-2017)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eX3 xDrive28i\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eX4 Series:\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eF26 X4 (2015-2018)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eX4 28i xDrive\u003c\/span\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 1.4em;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFeatures:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003e100% Bolt-On\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eLarge Billet Compressor Wheel \u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003e60mm Compressor Wheels \u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003ePorted and Polished Inlet \u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003e30mm Wheel-Blade Length \u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eStock Location\u003cbr\u003e\u003cbr\u003e\u003cstrong style=\"text-decoration: underline; font-size: 1.4em;\"\u003eKit Contents:\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eTurbocharger\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808808485088,"sku":"TR-TW2000","price":1540.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/TR-TW2000_Web_Pic.jpg?v=1759277878"},{"product_id":"tr-td05-20g-ball-bearing-billet-wheel-bolt-on-turbo-stock-replacement-for-subaru-08-14-wrx-09-13-forester-xt-05-08-legacy-gt","title":"TR TD05-20G Ball Bearing Billet Wheel Bolt On Turbo Stock Replacement for Subaru 08-14 WRX, 09-13 Forester XT \u0026 05-08 Legacy GT","description":"\u003cp\u003eSlow spool no more! Tomioka Racing’s TD05-20G for Subaru now comes in a ball bearing version. This latest offering breaks the myth of slow spooling TD05-20G. Armed with dual ceramic ball bearings and billet compressor wheel, this TD05-20G will spool close to a factory turbo with the right tune. The configuration provides balanced \u0026amp; improved air flow to the TD05 frame. The faster spooling TD05-20G will inject more driving excitement to your daily Subaru. You can expect the same seamless fitment from this new turbo as its TD05-20G predecessor.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eTurbo Characteristics:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable width=\"656\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eBearing Type:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eBall Bearing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eFlange Type:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eStandard Subaru 5-Bolts\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" width=\"100\"\u003e\n\u003cp\u003eCompressor Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"36\"\u003e\n\u003cp\u003eIn:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"364\"\u003e\n\u003cp\u003e52.5 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eEx:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"364\"\u003e\n\u003cp\u003e68 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eIn:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e56 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eEx:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e49.2 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eActuator:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e1.1 bar \/ 16 psi (Optional 1.3 bar)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eTurbine Housing:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e8 cm2\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eMax. Power:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e480 HP\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\n\u003cbr\u003eSpecifications:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDual Ceramic Ball Bearing\u003c\/li\u003e\n\u003cli\u003eBillet Compressor Wheel\u003c\/li\u003e\n\u003cli\u003eFast Spool\u003c\/li\u003e\n\u003cli\u003eBolt-On\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eKit Contents:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eGasket\u003c\/li\u003e\n\u003cli\u003eHardware Kit\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eApplications:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e2008 - 2014 Subaru WRX\u003c\/li\u003e\n\u003cli\u003e2009 - 2013 Subaru Forester XT*\u003c\/li\u003e\n\u003cli\u003e2005 - 2009 Subaru Legacy GT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e*Fitment Note – Subaru Forester XT (2009–2013 with EGR):\u003cbr data-start=\"144\" data-end=\"147\"\u003eWhen installing the TR-TS1051 Turbo, light grinding on the turbo housing and allowing the EGR adapter to be slightly dented at the contact point may be required for proper clearance. This does not affect either unit when done carefully.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar","offer_id":47808808190176,"sku":"TR-TS1051","price":1800.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar","offer_id":47808808222944,"sku":"TR-TS1051","price":1800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/TR-TS1051_2_WEB.jpg?v=1759277878"},{"product_id":"tr-gtx29-dcbb-dual-ceramic-ball-bearing-turbocharger-stock-replacement-for-subaru-wrx-2015-forester-2014-fa20dit-gen-ii","title":"TR GTX29 Gen II DCBB Dual Ceramic Ball Bearing Turbocharger Stock Replacement for Subaru WRX 2015+ \u0026 Forester 2014+ FA20DIT (TR-TS1052)","description":"\u003cp\u003eThe next generation GTX29 turbo for the Subaru FA20DIT engine features an 8% larger turbine wheel compared to the previous version. In addition, the turbo also features a brand new dual ceramic ball bearing design from its previous generation. On the compressor side, the billet wheel is point-milled to improve airflow and reduce turbulence with the bullet locking nut. This turbo is perfect for users who are looking for a quick spool turbo, gain in the overall power band, and top-end power for the Subaru FA20DIT turbo.  All necessary fittings and gaskets are included in the box to make the installation process painless.\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ctable height=\"406\" style=\"width: 417px; height: 347px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 42.1733px;\"\u003e\n\u003ctd style=\"width: 216.932px; height: 42.1733px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eBearing Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 185.17px; height: 42.1733px;\"\u003e\n\u003cp\u003eDual Ceramic Ball-Bearing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 42.1733px;\"\u003e\n\u003ctd style=\"width: 216.932px; height: 42.1733px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eFlange Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 185.17px; height: 42.1733px;\"\u003e\n\u003cp\u003eStandard Subaru 5-Bolts\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 42.1733px;\"\u003e\n\u003ctd style=\"width: 216.932px; height: 42.1733px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eCompressor \/ Turbine Wheel:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 185.17px; height: 42.1733px;\"\u003e\n\u003cp\u003e72 mm \/ 61mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 45.483px;\"\u003e\n\u003ctd style=\"width: 216.932px; height: 45.483px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eTurbine Housing:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 185.17px; height: 45.483px;\"\u003e\n\u003cp\u003e10cm\u003csup\u003e2\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 42.1733px;\"\u003e\n\u003ctd style=\"width: 216.932px; height: 42.1733px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eActuator:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 185.17px; height: 42.1733px;\"\u003e\n\u003cp\u003e1.03 bar \/ 15 psi\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 42.1733px;\"\u003e\n\u003ctd style=\"width: 216.932px; height: 42.1733px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eHorsepower:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 185.17px; height: 42.1733px;\"\u003e\n\u003cp\u003e600 HP\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 106.634px;\"\u003e\n\u003ctd style=\"width: 216.932px; height: 106.634px;\"\u003e\u003cstrong\u003eOEM Replacement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 185.17px; height: 106.634px;\"\u003e\n\u003cp\u003eReplace OEM # 14411AA880 \/ 14411AA881\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAngular Contact Dual Ceramic Ball Bearing\u003c\/li\u003e\n\u003cli\u003ePoint-Milled Compressor Wheel\u003c\/li\u003e\n\u003cli\u003eLarger Turbine Wheel\u003c\/li\u003e\n\u003cli\u003e100% Bolt-On\u003c\/li\u003e\n\u003cli\u003eBullet Locking Nut \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2015+ Subaru WRX\u003c\/li\u003e\n\u003cli\u003e2014+ Subaru Forester (FA20DIT)\u003c\/li\u003e\n\u003cli\u003e2012+ JDM Subaru Legacy 2.0GT DIT, 2014+ Subaru Levorg and 2015+ JDM Subaru WRX S4\u003c\/li\u003e\n\u003cli\u003e2014-2018 USDM Subaru Forester badged as Forester XT\u003c\/li\u003e\n\u003cli\u003e2014-2018 JDM Subaru Forester badged as Forester XT\u003c\/li\u003e\n\u003cli\u003e2015+ USDM Subaru WRX\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eGaskets\u003c\/li\u003e\n\u003cli\u003eHardware Kit\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFrequently Asked Questions: \u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs this a bold-on turbo? \u003c\/strong\u003e\u003cspan\u003eAbsolutely, this is a blt-on turbo that fits seamlessly with the existing hardware. No modifications to the piping are necessary; it will fit perfectly.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the spring rate on the actuator? \u003c\/strong\u003e\u003cspan\u003e It's set at 15 PSI. The turbo comes equipped with an adjustable wastegate actuator for precise control of boost pressure delivery.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs an aftermarket solenoid necessary?\u003c\/strong\u003e \u003cspan\u003eNo, it's not required. The stock solenoid is sufficient for the task. If you are aiming for incremental performance gains with a faster boost cueve, you may consider using our high precision, German-made boost solenoid. Our solenoid not only meets but surpasses factory specifications. We take pride in having one of the best boost solenoids on the market.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat's the maximum boost level?\u003c\/strong\u003e 32 PSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo I need exhaust manifold?\u003c\/strong\u003e \u003cspan\u003eIf you are seeking additional performance and power, our turbo is ideally paired with an aftermarket manifold. This combination enhances spooling and increases high-end horsepower and torque.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by: \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eturbo efficiency and speed\/heat,\u003c\/li\u003e\n\u003cli\u003efuel quality and knock margin,\u003c\/li\u003e\n\u003cli\u003eintake temps\/intercooling,\u003c\/li\u003e\n\u003cli\u003eexhaust backpressure,\u003c\/li\u003e\n\u003cli\u003eengine\/clutch\/trans limits,\u003c\/li\u003e\n\u003cli\u003etuner strategy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808808026336,"sku":"TR-TS1052","price":2245.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/TR-TS1052_1__WEB.jpg?v=1759277878"},{"product_id":"tr-billet-wheel-gt30-ball-bearing-turbo","title":"TR Billet Wheel GT30 Ball Bearing Turbo","description":"\u003cdiv\u003eIntroducing Tomioka Racing Billet Wheel Ball Bearing turbo series. The ball bearing turbocharger utilizes genuine Garrett ball bearing technology. Tomioka Racing’s Billet compressor wheel improves air flow by at least 10% and the smallest of the ball bearing turbo is perfect for 4-Cylinder applications and those looking for quick response. Coupled with Tomioka Racing’s stainless steel turbine housing, this ball bearing turbo is made for quick spool and improved top-end power compared to standard wheel. Choose from many configurations on the stainless turbine housing from T3 inlets to 3-Inch V-Band and 0.63AR to 1.06AR. The stainless steel turbine housing is also available separately for those who intend to run GTX30 or GTX35 turbocharger.\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003eSee this kit in action at PRE Racing Subaru BRZ \/ Scion FRS turbo kit set up \u003ca href=\"http:\/\/www.tomiokaracing.com\/index.php\/tr-tu3005.html%20\"\u003ehere\u003c\/a\u003e !\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e \u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e \u003cbr\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#cccccc\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#cccccc\"\u003eBall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd\u003eT3 or V-Band\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" height=\"27\" bgcolor=\"#cccccc\"\u003eActuator:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#cccccc\"\u003eExternal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" height=\"27\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e0.63\/ 0.82 \/ 1.06 AR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" height=\"27\" bgcolor=\"#cccccc\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#cccccc\"\u003e620 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e• Turbocharger\u003cbr\u003e• Gaskets\u003cbr\u003e• Hardware kits\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"0.82 A\/R Stainless Steel Turbine Housing with T3 Inlet \u0026 V-band Outlet  (TR-TU3007)","offer_id":47808808583392,"sku":"TR-TU3007","price":2050.0,"currency_code":"USD","in_stock":true},{"title":"1.06 A\/R Stainless Steel Turbine Housing with T3 Inlet \u0026 V-band Outlet (TR-TU3008)","offer_id":47808808616160,"sku":"TR-TU3008","price":2050.0,"currency_code":"USD","in_stock":true},{"title":"0.82 A\/R Stainless Steel Turbine Housing with V-Band \u0026 Outlet (TR-TU3005)","offer_id":47808808648928,"sku":"TR-TU3005","price":2050.0,"currency_code":"USD","in_stock":true},{"title":"1.06 A\/R Stainless Steel Turbine Housing with V-Band \u0026 Outlet (TR-TU3006)","offer_id":47808808681696,"sku":"TR-TU3006","price":2050.0,"currency_code":"USD","in_stock":true},{"title":"0.63 A\/R Stainless Steel Turbine Housing with V-Band \u0026 Outlet (TR-TU3009)","offer_id":47808808714464,"sku":"TR-TU3009","price":2050.0,"currency_code":"USD","in_stock":true},{"title":"0.63 A\/R Stainless Steel Turbine Housing with T3 Inlet \u0026 V-band Outlet (TR-TU3010)","offer_id":47808808747232,"sku":"TR-TU3010","price":2050.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/fam_2.jpg?v=1759277879"},{"product_id":"tr-turbo-upgrade-for-2016-porsche-macan-2-0t","title":"TR Turbo Upgrade for 2016+ Porsche Macan 2.0T","description":"\u003cp\u003eIntroducing the TR turbo upgrade for the Porsche Macan 2.0T. This turbo utilizes a RHF5 journal bearing center cartridge. Featuring a redesigned 6+6 compressor wheel paired with a 7cm\u003csup\u003e2\u003c\/sup\u003e turbine housing, this turbo brings excellent performance gains to the Macan. The larger port and polished housing inlet ensures the most efficient airflow possible to the turbocharger allowing for optimal performance. As with all TR  turbochargers, this kit comes with all necessary installation hardware.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eTurbo Characteristics:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable width=\"656\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eBearing Type:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eRHF5 Journal Bearing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eFlange Type:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eStandard Porsche\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"100\" rowspan=\"2\"\u003e\n\u003cp\u003eCompressor Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"36\"\u003e\n\u003cp\u003eIn:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"364\"\u003e\n\u003cp\u003e53.11 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eEx:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"364\"\u003e\n\u003cp\u003e71 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eIn:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e60 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eEx:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e54 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eActuator:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eUses OEM actuator system\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eTurbine Housing:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e7cm\u003csup\u003e2\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eMax. Power:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e475HP\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\n\u003cbr\u003eSpecifications:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBolt-On\u003c\/li\u003e\n\u003cli\u003eQuick Spool\u003c\/li\u003e\n\u003cli\u003eStock Location\u003c\/li\u003e\n\u003cli\u003eBillet Compressor Wheel\u003c\/li\u003e\n\u003cli\u003ePort and Polished Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eKit Contents:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eGasket\u003c\/li\u003e\n\u003cli\u003eHardware Kit\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eApplications:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e2016+ Porsche Macan 2.0T\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808808255712,"sku":"TR-TP1001","price":2915.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/TR-TP1001_1__WEB.jpg?v=1759277878"},{"product_id":"tr-td06-20g-billet-wheel-twin-scroll-bolt-on-turbo-stock-replacement-for-subaru-wrx-2008-2014-forester-2008-2014-legacy-gt-2005-2008","title":"TR TD06-20G Billet Wheel Twin Scroll Bolt On Turbo Stock Replacement for Subaru WRX 2008-2014 \u0026 Forester 2008-2014  \u0026 Legacy GT 2005-2008","description":"\u003cp\u003eTomioka Racing TD06-20G Twin Scroll Turbo now comes in Billet compressor wheel! The billet material improves air ow and performance by at least 10% over standard wheel. This turbo is ideal if you’re looking to put down the highest amount of horsepower without having to convert to a rotated mount set up and maintaining fast spool. This turbo is 100% bolt-on* and will support 550HP. Perfect for track and street applications!\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"0\" border=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\"\u003eModel\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eTD06-20G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eTR-TS1026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\"\u003e\u003cspan class=\"style3\"\u003eBearing \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\u003cspan class=\"style3\"\u003eJournal\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange\u003c\/td\u003e\n\u003ctd\u003eSTD Subaru 5 Bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eActuator\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e1.1 BAR \/ 16 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" width=\"100\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd width=\"36\"\u003eIn:\u003c\/td\u003e\n\u003ctd width=\"364\"\u003e52 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx:\u003c\/td\u003e\n\u003ctd width=\"364\"\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" height=\"27\" bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eIn:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e61 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e54 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" height=\"27\"\u003eMaximum Power\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e550 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" height=\"27\" bgcolor=\"#CCCCCC\"\u003eTurbine Housing\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003e8 cm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" height=\"27\"\u003eAir Flow Rate\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e640 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2008-2014  WRX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2008-2014 Forester\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2005-2008 Legacy GT\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eTurbocharger \u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eActuator \u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eOil \u0026amp; Water Pipe \u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eGaskets \u0026amp; Hardware Kits\u003c\/span\u003e\u003cspan style=\"font-size: 1.4em;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar \/ No","offer_id":47808808288480,"sku":"TR-TS1026","price":1750.0,"currency_code":"USD","in_stock":true},{"title":"1.1 bar \/ Yes [+$60]","offer_id":47808808321248,"sku":"TR-TS1026-TSB","price":1810.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar \/ No","offer_id":47808808354016,"sku":"TR-TS1026","price":1750.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar \/ Yes [+$60]","offer_id":47808808386784,"sku":"TR-TS1026-TSB","price":1810.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/dsc_4048_for_web_1.jpg?v=1759277878"},{"product_id":"tr-td06-20g-billet-wheel-twin-scroll-bolt-on-turbo-stock-replacement-for-subaru-wrx-2002-2007-sti-2004-2020","title":"TR TD06-20G Billet Wheel Twin Scroll Bolt On Turbo Stock Replacement for Subaru WRX 2002-2007 \u0026 STI 2004-2020","description":"\u003cp\u003eTomioka Racing TD06-20G Twin Scroll Turbo now comes in Billet compressor wheel! The billet material improves air flow and performance by at least 10% over standard wheel. This turbo is ideal if you’re looking to put down the highest amount of horsepower without having to convert to a rotated mount set up and maintaining fast spool. This turbo is 100% bolt-on* and will support 550HP. Perfect for track and street applications!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ctable width=\"500\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#CCCCCC\" style=\"width: 150.923px;\"\u003eModel\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" style=\"width: 403.281px;\"\u003eTD06-20G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"width: 150.923px;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"width: 403.281px;\"\u003eTR-TS1027\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#CCCCCC\" style=\"width: 150.923px;\"\u003e\u003cspan class=\"style3\"\u003eBearing \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" style=\"width: 403.281px;\"\u003e\u003cspan class=\"style3\"\u003eJournal\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"width: 150.923px;\"\u003eFlange\u003c\/td\u003e\n\u003ctd style=\"width: 403.281px;\"\u003eSTD Subaru 5 Bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" colspan=\"2\" style=\"width: 150.923px;\"\u003eActuator\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" style=\"width: 403.281px;\"\u003e1.1 BAR \/ 16 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"100\" rowspan=\"2\" style=\"width: 110.895px;\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd width=\"36\" style=\"width: 40.0284px;\"\u003eIn:\u003c\/td\u003e\n\u003ctd width=\"364\" style=\"width: 403.281px;\"\u003e52 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40.0284px;\"\u003eEx:\u003c\/td\u003e\n\u003ctd width=\"364\" style=\"width: 403.281px;\"\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\" rowspan=\"2\" style=\"width: 110.895px;\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" style=\"width: 40.0284px;\"\u003eIn:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" style=\"width: 403.281px;\"\u003e61 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" style=\"width: 40.0284px;\"\u003eEx:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" style=\"width: 403.281px;\"\u003e54 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\" style=\"width: 150.923px;\"\u003eMaximum Power\u003c\/td\u003e\n\u003ctd height=\"27\" style=\"width: 403.281px;\"\u003e530 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\" colspan=\"2\" style=\"width: 150.923px;\"\u003eTurbine Housing\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\" style=\"width: 403.281px;\"\u003e8 cm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\" style=\"width: 150.923px;\"\u003eAir Flow Rate\u003c\/td\u003e\n\u003ctd height=\"27\" style=\"width: 403.281px;\"\u003e640 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eTR-TS1047 Twin Scroll GTX2971\u003c\/th\u003e\n\u003cth\u003eTR-TS1027 Tomioka Racing TD06-20G Billet\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003e2002-2007 WRX, 2004-2018 STi\u003c\/td\u003e\n\u003ctd\u003e2002-2007 WRX, 2004-2020 STI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing Type\u003c\/td\u003e\n\u003ctd\u003eBall-Bearing\u003c\/td\u003e\n\u003ctd\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor Wheel Material\u003c\/td\u003e\n\u003ctd\u003eBillet\u003c\/td\u003e\n\u003ctd\u003eBillet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor Wheel Size (mm)\u003c\/td\u003e\n\u003ctd\u003eIn: 54, Ex: 72\u003c\/td\u003e\n\u003ctd\u003eIn: 52, Ex: 68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTurbine Wheel Size (mm)\u003c\/td\u003e\n\u003ctd\u003eIn: 60, Ex: 57\u003c\/td\u003e\n\u003ctd\u003eIn: 61, Ex: 54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTurbine Housing Size\u003c\/td\u003e\n\u003ctd\u003e10cm2\u003c\/td\u003e\n\u003ctd\u003e8cm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight of Compressor Wheel\u003c\/td\u003e\n\u003ctd\u003eLighter than competing turbos\u003c\/td\u003e\n\u003ctd\u003e10% improvement over standard wheel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel and Blade Design\u003c\/td\u003e\n\u003ctd\u003e20% larger wheel, 17% longer blades\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExhaust Housing\u003c\/td\u003e\n\u003ctd\u003ePort and polished to minimize turbulence\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Horsepower Support\u003c\/td\u003e\n\u003ctd\u003e550 HP\u003c\/td\u003e\n\u003ctd\u003e530 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpool Characteristics\u003c\/td\u003e\n\u003ctd\u003eTwin-scroll design for optimal spooling\u003c\/td\u003e\n\u003ctd\u003eFast spool, ideal for maintaining high HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eRequires twin-scroll headers and downpipe\u003c\/td\u003e\n\u003ctd\u003e100% bolt-on\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2002-2007 WRX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2004-2020 STI\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eTurbocharger \u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eActuator \u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eOil \u0026amp; Water Pipe \u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eGaskets \u0026amp; Hardware Kits\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar","offer_id":47808808419552,"sku":"TR-TS1027","price":1750.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar","offer_id":47808808452320,"sku":"TR-TS1027","price":1750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/dsc_4035_tr1027_for_web.jpg?v=1759277878"},{"product_id":"tr-td05-20g-ball-bearing-billet-wheel-bolt-on-turbo-stock-replacement-for-subaru-wrx-02-07-sti-04-21","title":"TR TD05-20G Ball Bearing Billet Wheel Bolt On Turbo Stock Replacement for Subaru WRX 02-07 \u0026 STi 04-21","description":"\u003cp\u003eSlow spool no more! Tomioka Racing’s TD05-20G for Subaru now comes in a ball bearing version. This latest offering breaks the myth of slow spooling TD05-20G. Armed with dual ceramic ball bearings and billet compressor wheel, this TD05-20G will spool close to a factory turbo with the right tune. The configuration provides balanced \u0026amp; improved air flow to the TD05 frame. The faster spooling TD05-20G will inject more driving excitement to your daily Subaru. You can expect the same seamless fitment from this new turbo as its TD05-20G predecessor.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eTurbo Characteristics:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable width=\"656\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eBearing Type:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eBall Bearing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eFlange Type:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eStandard Subaru 5-Bolts\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" width=\"100\"\u003e\n\u003cp\u003eCompressor Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"36\"\u003e\n\u003cp\u003eIn:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"364\"\u003e\n\u003cp\u003e52.5 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eEx:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"364\"\u003e\n\u003cp\u003e68 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eIn:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e56 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eEx:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e49.2 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eActuator:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e1.1 bar \/ 16 psi (Optional 1.3 bar)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eTurbine Housing:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e8 cm2\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003eMax. Power:\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e480 HP\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\n\u003cbr\u003eSpecifications:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDual Ceramic Ball Bearing\u003c\/li\u003e\n\u003cli\u003eBillet Compressor Wheel\u003c\/li\u003e\n\u003cli\u003eFast Spool\u003c\/li\u003e\n\u003cli\u003eBolt-On\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eKit Contents:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eGasket\u003c\/li\u003e\n\u003cli\u003eHardware Kit\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eApplications:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e2002 - 2007 Subaru WRX\u003c\/li\u003e\n\u003cli\u003e2004 – 2018 Subaru STi\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar","offer_id":47808808976608,"sku":"TR-TS1050","price":1800.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar","offer_id":47808809009376,"sku":"TR-TS1050","price":1800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/TR-TS1050_1__web.jpg?v=1759277879"},{"product_id":"tr-td06-20g-twin-scroll-bolt-on-turbo-kit-stock-replacement-for-2008-2011-wrx-2005-2008-legacy-gt","title":"TR TD06-20G Twin Scroll Bolt On Turbo Kit Stock Replacement for 2008-2011 WRX \u0026 2005-2008 Legacy GT","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: x-small;\"\u003e** Attention: All of our turbocharger now comes with billet wastegate actuator. The brass wastegate actuator will be phased out. Picture(s) of turbo or turbo kit(s) with the brass wastegate actuator will be replaced as soon as the new picture(s) become available. If you have any questions, please contact us ** \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eTomioka Racing Twin Scroll Turbo line is catered to the die-hard Subaru fans! The twin scroll turbo is an efficient and economical way to replace or upgrade your current twin scroll set up on your Subaru. Twin Scroll Turbo are increasingly hard to find these days, with the Tomioka Turbo they are direct bolt-on, featuring USDM length twin-scroll downpipe and also boast more boost power than the standard VF series turbo. With TD06 housing and twin-scroll set-up, Tomioka Turbo improves spool time compared to the standard TD06 turbo! \u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003ePlease be advised, when installing into a 2005-2008 Subaru legacy GT \/ 2008-2014 Subaru WRX , STi 2008-2020 you will not need a \u003cspan class=\"il\"\u003etwin\u003c\/span\u003e \u003cspan class=\"il\"\u003escroll\u003c\/span\u003e bracket, the factory bracket will work and fit. \u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cspan\u003eThe O2 sensors from the exhaust manifold will need to be relocated to the downpipe. Factory Oxygen sensors cables may not be long enough and may need to be modified to fit. \u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e*** \u003c\/span\u003e\u003cspan\u003eDo not solder wires together to make a longer O2, this will make a fault in the reading and will throw codes and ruin the flow\u003c\/span\u003e\u003cspan\u003e ***\u003c\/span\u003e  \u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan class=\"im\"\u003e\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"500\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eJournal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd\u003eStandard Subaru 5-Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"100\" rowspan=\"2\" bgcolor=\"#CCCCCC\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd width=\"36\" bgcolor=\"#CCCCCC\"\u003eIn:\u003c\/td\u003e\n\u003ctd width=\"364\" bgcolor=\"#CCCCCC\"\u003e51 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx:\u003c\/td\u003e\n\u003ctd width=\"364\" bgcolor=\"#CCCCCC\"\u003e58 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" rowspan=\"2\"\u003e\n\u003cp\u003eTurbine Wheel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eIn:\u003c\/td\u003e\n\u003ctd\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx:\u003c\/td\u003e\n\u003ctd\u003e56 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eActuator:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003e1 Bar \/ 14.7 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e8 cm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" colspan=\"2\" bgcolor=\"#CCCCCC\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003e500 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2008-2011 Subaru WRX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2005-2008 Legacy GT\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e• Twin Scroll Turbo\u003cbr\u003e• Twin Scroll Manifold\u003cbr\u003e• 3-Bolt Uppipe\u003cbr\u003e• Twin Scroll USDM Downpipe\u003cbr\u003e• Bracket\u003cbr\u003e• Hardware kits\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808808517856,"sku":"TR-TS1014","price":3235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/tr-ts1014_4.jpg?v=1759277878"},{"product_id":"tr-dcbb-ihx675-turbo-upgrade-kit-for-vw-audi-ea888-gen-3-mqb","title":"TR DCBB IHX675 - Turbo Upgrade Kit For VW \/ AUDI EA888 Gen 3 (MQB)","description":"\u003cp\u003eNow available featuring Dual Ceramic Ball-Bearing (DCBB) technology, a point-milled race billet compressor wheel, and ready to bring your EA888 1.8T or 2.0T to the next level. After tireless testing of our \u003ca href=\"https:\/\/www.tomiokaracing.com\/products\/tr-ihx475-turbo-kit-for-vw-audi-mqb-ea888\"\u003eIHX475\u003c\/a\u003e and \u003ca title=\"TR IHX600\" href=\"https:\/\/www.tomiokaracing.com\/products\/tr-ihx600-turbo-kit-for-vw-audi-mqb-ea888\" target=\"_blank\"\u003eIHX600\u003c\/a\u003e for the \u003cstrong\u003eVW \/ Audi EA888 MQB Engine\u003c\/strong\u003e, the DCBB IHX675 is our fastest spooling and most powerful IHX turbo to date. With a larger housing area than the IHX600, \u003cem\u003ethe turbo kit will aid the motor in delivering over 675 HP\u003c\/em\u003e. Still 100% bolt-on and ready to rock with everything you need to get the installation done. The DCBB IHX675 turbocharger is still completely new and manufactured from the ground up.\u003c\/p\u003e\n\u003cp\u003eCheck out 2017 VW Golf R with Stock Engine 10 seconds quarter mile run \u003ca href=\"https:\/\/www.tomiokaracing.com\/blogs\/news\/2017-stock-engine-vw-golf-r-with-ihx675-turbo-reaches-10-seconds-in-quarter-mile-drag\" target=\"_blank\"\u003ehere\u003c\/a\u003e or below at the end of product listing.\u003c\/p\u003e\n\u003cp\u003eRather than putting new internals in a stock IS38 housing, we constructed our own housing to use with the custom internals, proving beneficial as all defects with the stock IS38 internals and housing have been corrected such as housing cracking and stock shaft breaking.\u003c\/p\u003e\n\u003cp\u003eThe DCBB IHX675 is a key component for making power with the \u003cstrong\u003eVAG MQB platform modular chassis\u003c\/strong\u003e and \u003cstrong\u003eEA888 1.8T\/2.0T engines\u003c\/strong\u003e. The IHX675 is able to deliver more power, maintaining its durability in high boost situations. Created for longevity with strict tolerances, the turbocharger is also VSR balanced at high speeds.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specification\u003c\/h2\u003e\n\u003cdiv class=\"rte__table-wrapper\"\u003e\n\u003cdiv class=\"rte__table-wrapper\"\u003e\n\u003ctable width=\"603\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e\u003cstrong\u003eBearing Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003eBall-Bearing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFlange Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eVAG\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\u003cstrong\u003eCompressor Wheel:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eIn: 54.14mm | Ex: 73.24mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTurbine Housing:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e10cm\u003csup\u003e2\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e\u003cstrong\u003eTurbine Wheel:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003eIn: 60.30mm | Ex: 55mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHorsepower:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e675 HP\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eProduct Compatibility\u003c\/h2\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"#CCCCCC\"\u003e\n\u003ctd\u003e\u003cstrong\u003e Vehicle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSubmodel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi\u003c\/td\u003e\n\u003ctd\u003e8V S3\u003c\/td\u003e\n\u003ctd\u003eQuattro\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eA3 8V\u003c\/td\u003e\n\u003ctd\u003eFWD\u003c\/td\u003e\n\u003ctd\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eA3 8V\u003c\/td\u003e\n\u003ctd\u003eQuattro\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eTT\u003c\/td\u003e\n\u003ctd\u003eMK3 (2014+)\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eTTS\u003c\/td\u003e\n\u003ctd\u003eMK3 (2014+)\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVW\u003c\/td\u003e\n\u003ctd\u003eGolf MKVII\u003c\/td\u003e\n\u003ctd\u003eGTI\u003c\/td\u003e\n\u003ctd\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eGolf MKVII\u003c\/td\u003e\n\u003ctd\u003eHatchback\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eGolf MKVII\u003c\/td\u003e\n\u003ctd\u003eSportwagen Gen3\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eGolf MKVII\u003c\/td\u003e\n\u003ctd\u003eR\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eLeon\u003c\/td\u003e\n\u003ctd\u003eMK3\u003c\/td\u003e\n\u003ctd\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eLeon\u003c\/td\u003e\n\u003ctd\u003eMK3\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eCupra\u003c\/td\u003e\n\u003ctd\u003eTyp 5F\u003c\/td\u003e\n\u003ctd\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eCupra\u003c\/td\u003e\n\u003ctd\u003eTyp 5F\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSkoda\u003c\/td\u003e\n\u003ctd\u003eOctavia\u003c\/td\u003e\n\u003ctd\u003eMK3\u003c\/td\u003e\n\u003ctd\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eOctavia\u003c\/td\u003e\n\u003ctd\u003eMK3\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003evRS\u003c\/td\u003e\n\u003ctd\u003eTyp 5E\u003c\/td\u003e\n\u003ctd\u003e1.8T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003evRS\u003c\/td\u003e\n\u003ctd\u003eTyp 5E\u003c\/td\u003e\n\u003ctd\u003e2.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEnlarged Lightweight Stainless Steel Exhaust Housing\u003c\/li\u003e\n\u003cli\u003eLarger point-milled billet compressor wheel and exhaust turbine\u003c\/li\u003e\n\u003cli\u003eLarger and stronger center shaft\u003c\/li\u003e\n\u003cli\u003eBetter heat retention\u003c\/li\u003e\n\u003cli\u003eVSR Balanced\u003c\/li\u003e\n\u003cli\u003eCompatible with IS20 and IS38 wastegate\/diverter valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Contents\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eGaskets\u003c\/li\u003e\n\u003cli\u003eHardware Kit\u003c\/li\u003e\n\u003cli\u003eBlack Aluminum Turbo Inlet Pipe\u003c\/li\u003e\n\u003cli\u003eStock Diverter Valve Adapter Kit\u003c\/li\u003e\n\u003cli\u003eTurbocharger Muffler Delete\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e10 Seconds Factory Engine Volkswagen Golf R\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/NeSz9iCT_gA\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808808780000,"sku":"TR-TW1007","price":3500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/IHX675_1_med.jpg?v=1759277879"},{"product_id":"tr-tw2007-turbo-for-bmw-n55-ewg","title":"TR TW2007 Turbo for BMW N55 EWG","description":"\u003cp\u003eIntroducing Tomioka Racing’s turbocharger upgrade for the BMW N55 engine featuring Electronic Waste Gates (EWG). TR’s turbo offers a billet compressor wheel in 6+6 configuration and a larger wheel compared to the factory turbo. The increase in diameter is further matched with larger porting of the interior of the factory-sized compressor housing. It looks like a factory turbo, but contains a larger 72mm compressor wheel and longer 35mm wheel-blade to improve airflow and extract more power from the N55 motor, achieving more efficient boost. No Core exchange is required. This is a 100% bolt-on balanced replacement turbo with improved performance over the stock unit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e*Note that this turbo only fits vehicle model with Electronic Waste Gate (EWG)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eTurbo Characteristics:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eStandard BMW Header Bolt-On\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor Wheel:\u003c\/td\u003e\n\u003ctd\u003e72mm Billet Compressor Wheel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"100\" bgcolor=\"#CCCCCC\"\u003eTurbine Wheel\u003c\/td\u003e\n\u003ctd width=\"364\" bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003eIn: 50mm\u003c\/p\u003e\n\u003cp\u003eEx: 48mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\"\u003e\n\u003cp\u003eTurbine Housing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eStandard (OEM Machined) - Includes Ported and Polished Inlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003eMax Power:\u003c\/td\u003e\n\u003ctd height=\"27\" bgcolor=\"#CCCCCC\"\u003e450 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• 100% Bolt-On\u003cbr\u003e• Large Billet Compressor Wheel \u003cbr\u003e• 72mm Compressor Wheel\u003cbr\u003e• Ported and Polished Inlet \u003cbr\u003e• 35mm Wheel-Blade Length \u003cbr\u003e• Stock Location\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e• Turbocharger\u003c\/p\u003e\n\u003cp\u003eView the product release information \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1799\/0047\/files\/TR-TW2007_info-compressed.pdf?15366577788616381373\" title=\"TR BMW N55 EWG Turbo Upgrade\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808808550624,"sku":"TR-TW2007","price":1485.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/DSC_7807_web.jpg?v=1759277878"},{"product_id":"tr-subaru-brz-scion-frs-toyota-86-ft86-dual-ceramic-ball-bearing-dcbb-turbo-kit-up-to-500-whp-stock-replacement","title":"TR Subaru BRZ \/ Scion FRS \/ Toyota 86 FT86 Dual Ceramic Ball Bearing (DCBB) Turbo Kit Up to 500 WHP  (TR-TS1053)","description":"\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003eTomioka Racing's turbocharger kit is an all-in-one solution to increase power for the Subaru BRZ, Scion FRS and Toyota 86, now available in our proprietary Ball Bearing version. The kit comes with a 58\/76mm billet compressor wheel turbocharger featuring dual ceramic ball bearing technology and a billet waste-gate actuator.  \u003c\/p\u003e\n\u003cp\u003eThis turbo kit is able to add 125+HP on the stock fuel system. On a manual transmission, an upgraded clutch is highly recommended but not required. This kit works perfectly fine with automatic transmission. \u003c\/p\u003e\n\u003cp\u003eWith custom 54mm ceramic ball bearing requires less oil to run and spools faster. With its larger compressor and turbine wheel, it will achieve higher top-end power compared to the journal bearing version. The turbo is oil \u0026amp; water cooled and come as a dual ball bearing unit for spooling faster. In addition, the billet waste-gate actuator ensures to hold boost levels at high RPM.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0); text-decoration: underline;\"\u003e\u003cstrong\u003ePerformances: \u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn 91\/93 octane (10PSI) with selected exhaust modifications, 300 to 325 WHP\u003c\/p\u003e\n\u003cp\u003eOn E85 ethanol, up to 500 WHP on built engine with upgraded fuel modifications. \u003c\/p\u003e\n\u003cp\u003eNow Featuring the BMC Conical air filter. Designed for direct air intake we teamed up with BMC to create our full turbo kit with a top of the line air filter system!\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eCharacteristics:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eIN: 54mm\/ EX: 67mm billet compressor wheel \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIN: 54mm\/ EX: 49mm turbine wheel \u003c\/li\u003e\n\u003cli\u003e54mm Inducer Billet Compressor Wheel CHRA Dual Ceramic Ball Bearing (DCBB)\u003c\/li\u003e\n\u003cli\u003e0.8 Bar (10 Psi) Internal Wastegate  \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3-Bar MAP Sensor Included\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIntercooler, piping, ball-bearing, oil \u0026amp; water cooled Included\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUp to 400 WHP for stock engine on E85 Ethanol \u003c\/li\u003e\n\u003cli\u003eUp to 500 WHP for build engine on E85 Ethanol \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger\u003c\/li\u003e\n\u003cli\u003eMandrel Bent Aluminum Front Mount Intercooler\u003c\/li\u003e\n\u003cli\u003eTig Welded Stainless Steel Turbo Manifold and exhaust piping\u003c\/li\u003e\n\u003cli\u003ePre welded engine oil pan (optional with extra cost)\u003c\/li\u003e\n\u003cli\u003eEcutek Base Map + License (optional with extra cost) \u003c\/li\u003e\n\u003cli\u003eCharge Pipe\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAir Intake\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOMNI 3 bar MAP Sensor\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e4-ply silicone hose \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHi-temperature turbo blanket\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eAll Necessary Hardware to Install\u003c\/li\u003e\n\u003cli\u003eBMC Air Filter Conical Filter \u003cmeta charset=\"UTF-8\"\u003e \u003cspan\u003eFBSA70-110 \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eTR Winshield Decal x 1 \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eScion FR-S [ZN6]: 2013-2016\u003c\/li\u003e\n\u003cli\u003eToyota 86: 2017-2021\u003c\/li\u003e\n\u003cli\u003eSubaru BRZ [ZC6]: 2013- 2021\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline; color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003e\u003cspan\u003eNotes:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTo tune your vehicle with this kit, you must have either an \u003ca href=\"https:\/\/www.edoperformance.com\/collections\/sale-ecutek\"\u003eEcutek\u003c\/a\u003e. If you don't already have one of these options, you'll need to purchase it along with your turbo kit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e** Off Road Use Only. This product or products may not comply with some State, Federal, Provincial and\/or Local laws, ordinances, regulations or emissions. The buyer takes full responsibility of the use of these products on their automobile which may or may not conform to all applicable laws and regulations for on road or highway use.** \u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0); text-decoration: underline;\"\u003e\u003ca style=\"color: rgb(255, 42, 0); text-decoration: underline;\" rel=\"noopener\" title=\"TR FT86 DCBB Turbo Kit TR-TS1053 Installation Manual\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1799\/0047\/files\/pdfresizer.com-pdf-resize_1.pdf?v=1733527880\" target=\"_blank\"\u003e[Click Here for Installation Manual]\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"Default Title","offer_id":47808808845536,"sku":"TR-TS1053","price":4675.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/Untitleddesign_2_bf7136b4-392f-46e4-aa0a-5399ee1327d6.png?v=1759277879"},{"product_id":"tr-gtx2971-ball-bearing-twin-scroll-turbo-kit-stock-replacement-for-subaru-02-07-wrx-04-18-sti","title":"TR GTX2971 Ball-Bearing Twin Scroll Turbo Kit Stock Replacement for Subaru 02-07 WRX \u0026 04-18 STI","description":"\u003cp\u003eNow available for the brand new GTX2971 Twin Scroll Turbo, the TR Equal Length Exhaust Manifold with Up-Pipe and TR Twin Scroll High Flow Catless Downpipe! The perfect combination for a complete twin scroll turbocharged setup for your WRX or STi. Rated up to ~430whp, the twin scroll technology ensures spool speed that is night and day in comparison to single scroll turbos. Thought your turbo spooled fast before? Think again.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis twin scroll edition features a ball-bearing cartridge, billet compressor wheel , and 10\u003c\/span\u003e\u003cspan\u003ecm\u003c\/span\u003e\u003csup\u003e2\u003c\/sup\u003e\u003cspan\u003e housing. Thanks to the billet compressor wheel the overall weight of the wheel is lighter than competing turbochargers and allows for maximum airflow throughout the unit with the help of point milling on each blade. A unique wheel and blade design, featuring a 20% larger wheel with 17% longer blades than the factory turbocharger. In addition, the GTX2971 features a port and polished exhaust housing to minimize exhaust flow turbulence. All hardware is included with purchase.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCatered to the die-hard Subaru fans! The twin scroll turbo is an efficient way to replace or upgrade your current twin scroll set up on your Subaru. With the rarity of twin-scroll turbo applications, we have created yet another direct bolt-on system, this time for the 2002-2007 WRX and 2004-2018 STi. The GTX2971 is already an efficient turbo but now paired with a complete twin-scroll system, spool time is dramatically decreased!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Twin Scroll High Flow Catless Downpipe features larger diameter piping with ported flanges for a quicker and faster exhaust air flow compared to the standard OEM downpipe. Each downpipe is constructed of SUS304 grade stainless steel that gives it shine and durability that will last for years to come. Installation is a snap! The downpipe will fit like your OEM downpipe and comes with all the necessary hardware and gaskets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Twin Scroll Equal Length Headers feature a lost wax finish with 3-1 connectors and a smooth inner surface for the best air flow. A stable \u0026amp; effective connection s made by the slip joint bracket and air leakage is avoided by the 3 bolt flange design up-pipe.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAll in all the entire system will bolt together without any issues and make way for quick installation, having all components sit in their stock locations in the engine bay.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eTurbo Specifications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable width=\"603\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e\u003cstrong\u003eBearing Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003eBall-Bearing\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFlange Type:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eStandard Subaru 5-Bolts\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" bgcolor=\"#CCCCCC\"\u003e\u003cstrong\u003eBillet Compressor Wheel:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eIn: 54 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003eEx: 72 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" height=\"27\"\u003e\n\u003cp\u003e\u003cstrong\u003eTurbine Wheel:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eIn: 60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx: 57 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e\u003cstrong\u003eTurbine Housing:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e10cm\u003csup\u003e2\u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eActuator:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e1.1 bar \/ 16 psi\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e\u003cstrong\u003eHorsepower:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\"\u003e\n\u003cp\u003e500 HP\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eDownpipe Specifications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"rte__table-wrapper\"\u003e\n\u003ctable width=\"500\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"173\" height=\"27\" bgcolor=\"#CCCCCC\"\u003eMaterial\u003c\/td\u003e\n\u003ctd width=\"317\" bgcolor=\"#CCCCCC\"\u003eStainless Steel SUS304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rte__table-wrapper\"\u003e\n\u003ctable width=\"500\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"173\" height=\"27\"\u003ePipe Thickness\u003c\/td\u003e\n\u003ctd width=\"317\"\u003e0.25 Inch \/ 6.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rte__table-wrapper\"\u003e\n\u003ctable width=\"500\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"173\" height=\"27\" bgcolor=\"#CCCCCC\"\u003eFlange Thickness\u003c\/td\u003e\n\u003ctd width=\"317\" bgcolor=\"#CCCCCC\"\u003e0.5 Inch \/ 12.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2002 - 2007 Subaru WRX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2004 - 2018 Subaru STi\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger (TR-TS1047)\u003c\/li\u003e\n\u003cli\u003eGaskets\u003c\/li\u003e\n\u003cli\u003eUpgraded Billet Actuator\u003c\/li\u003e\n\u003cli\u003eOil Drain Pipe\u003c\/li\u003e\n\u003cli\u003eWater Pipe\u003c\/li\u003e\n\u003cli\u003eTwin scroll Downpipe (TR-ES1005)\u003c\/li\u003e\n\u003cli\u003eDown pipe to Exhaust Gasket x1 \u003c\/li\u003e\n\u003cli\u003eDown pipe to Exhaust Nuts \u0026amp; Bolts x2\u003c\/li\u003e\n\u003cli\u003eExhaust Manifold (TR-ES1002)\u003c\/li\u003e\n\u003cli\u003eUp Pipe (TR-ES1002)\u003c\/li\u003e\n\u003cli\u003e50' x 2\" Exhaust Wrap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rte__table-wrapper\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"rte__table-wrapper\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"rte__table-wrapper\"\u003e\u003cem\u003e\u003cb\u003eFor Off-Road Use Only\u003c\/b\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv class=\"rte__table-wrapper\"\u003e\n\u003cem\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/em\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rte__table-wrapper\"\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"1.1 bar","offer_id":47808809042144,"sku":"TR-TS1100","price":3290.0,"currency_code":"USD","in_stock":true},{"title":"1.3 bar","offer_id":47808809074912,"sku":"TR-TS1100","price":3290.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/TR-TS1100_620x600_a70223f5-3b5d-4698-9c30-1a51cd2265de.jpg?v=1759277879"},{"product_id":"tr-premium-mitsubishi-4g63-2-3l-stroker-kit-94-mm-stroke","title":"Tomioka Racing Premium Mitsubishi 4G63 2.3L Stroker Kit 94 mm Stroke","description":"\u003cp\u003eGain horsepower and torque through displacement using factory 4G63 engine block! Tomioka Racing 2.3 Liter Premium Stroker Kit for 4G63 series engine is built with the quality features and the latest technology in coating options to ensure the dependability that comes from every TR product. TR uses competition grade components from forged 2618 aluminum pistons, forged 4340 connecting rods, and billet crankshaft chosen specifically to offer the durability to handle high horsepower demands. When coupled with our competition series bearings it makes TR Stroker Kit the ultimate 4G63 engine upgrades!\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eStroker Kit Characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"163\"\u003eCompression Ratio :\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" width=\"337\"\u003e9.0 : 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStroke :\u003c\/td\u003e\n\u003ctd\u003e94 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003eRod Length :\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e150 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\"\u003eCrankshaft :\u003c\/td\u003e\n\u003ctd height=\"27\"\u003eBillet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003ePiston :\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003eForged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\"\u003eBearings :\u003c\/td\u003e\n\u003ctd height=\"27\"\u003eRace\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStroker Kit Specifications \u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"1\" cellspacing=\"0\" width=\"535\" height=\"261\" style=\"width: 547px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" style=\"width: 70.2344px;\"\u003e\n\u003cdiv class=\"style2\"\u003ePart Number\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" style=\"width: 45.9844px;\"\u003e\n\u003cdiv class=\"style2\"\u003eStroke\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" style=\"width: 54.8594px;\"\u003e\n\u003cdiv class=\"style2\"\u003eBore Size\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" style=\"width: 63.2656px;\"\u003e\n\u003cdiv class=\"style2\"\u003eOver Size\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" style=\"width: 60.3594px;\"\u003e\n\u003cdiv class=\"style2\"\u003eRod Length\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" style=\"width: 115.969px;\"\u003e\n\u003cdiv class=\"style2\"\u003eCompression Distance\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd bgcolor=\"#CCCCCC\" style=\"width: 106.328px;\"\u003e\n\u003cdiv class=\"style2\"\u003eCompression Ratio\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 70.2344px;\"\u003e\n\u003cdiv\u003eTR-ES2003\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 45.9844px;\"\u003e\n\u003cdiv\u003e94 mm\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 54.8594px;\"\u003e\n\u003cdiv\u003e85.0 mm\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 63.2656px;\"\u003e\n\u003cdiv\u003eStandard\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 60.3594px;\"\u003e\n\u003cdiv\u003e150 mm\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 115.969px;\"\u003e\n\u003cdiv\u003e28.70 mm\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 106.328px;\"\u003e\n\u003cdiv\u003e9.0 : 1\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003e\u003cspan class=\"style10\"\u003eBillet Crankshaft\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\"\u003eH-Beam Connecting Rod Set \/ I-Beam Connecting Rod Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003eForged Piston Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"27\"\u003eRace Main Bearings Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd bgcolor=\"#CCCCCC\" height=\"27\"\u003eRace Conrod Bearings Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"I-Beam \/ 85 mm","offer_id":48541428711648,"sku":"TR-ES2003-IB","price":4950.0,"currency_code":"USD","in_stock":true},{"title":"H-Beam \/ 85 mm","offer_id":48541428744416,"sku":"TR-ES2003-HB","price":4250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/tr-es2003_2__1.jpg?v=1768435959"},{"product_id":"tr-gt30-ball-bearing-turbo","title":"TR GT30 Ball Bearing Turbo","description":"\u003cdiv\u003eIntroducing Tomioka Racing Ball Bearing turbo series. The ball bearing turbocharger uses genuine Garrett ball bearing technology. The smallest of ball bearing turbo is rated upwards of 500HP. Perfect for application from 4-Cylinder upwards and those looking for quick response. Coupled with Tomioka Racing's stainless steel turbine housing, the ball bearing turbo is made for for quick spool and top-end power. Choose from many configurations on the stainless turbine housing from T3 inlets to 3-Inch V-Band and 0.63AR or 1.06AR. The stainless steel turbine housing is also available separately for those who intend to run the popular GTX3076 or GTX3582 turbocharger. \u003cbr\u003e \u003cbr\u003e \u003cbr\u003e \u003cstrong\u003eTurbo Characteristics\u003c\/strong\u003e \u003cbr\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"500\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#cccccc\"\u003eBearing Type:\u003c\/td\u003e\n\u003ctd bgcolor=\"#cccccc\"\u003eBall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFlange Type:\u003c\/td\u003e\n\u003ctd\u003eT3 or V-Band\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#cccccc\" height=\"27\"\u003eActuator:\u003c\/td\u003e\n\u003ctd bgcolor=\"#cccccc\" height=\"27\"\u003eExternal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" height=\"27\"\u003eTurbine Housing:\u003c\/td\u003e\n\u003ctd height=\"27\"\u003e0.63\/ 0.82 \/ 1.02 AR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" bgcolor=\"#cccccc\" height=\"27\"\u003eMax. Power:\u003c\/td\u003e\n\u003ctd bgcolor=\"#cccccc\" height=\"27\"\u003e500HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e• Turbocharger\u003cbr\u003e• Gaskets\u003cbr\u003e• Hardware kits\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e","brand":"Tomioka Racing (TR)","offers":[{"title":"0.82 A\/R Stainless Steel Turbine Housing with T3 Inlet \u0026 V-band Outlet  (TR-TU3003)","offer_id":48829981262048,"sku":"TR-TU3003","price":1600.0,"currency_code":"USD","in_stock":true},{"title":"1.06 A\/R Stainless Steel Turbine Housing with T3 Inlet \u0026 V-band Outlet (TR-TU3004)","offer_id":48829981294816,"sku":"TR-TU3004","price":1600.0,"currency_code":"USD","in_stock":true},{"title":"0.82 A\/R Stainless Steel Turbine Housing with V-Band \u0026 Outlet (TR-TU3001)","offer_id":48829981327584,"sku":"TR-TU3001-03","price":1600.0,"currency_code":"USD","in_stock":true},{"title":"1.06 A\/R Stainless Steel Turbine Housing with V-Band \u0026 Outlet (TR-TU3002)","offer_id":48829981360352,"sku":"TR-TU3002","price":1600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2430\/files\/dsc_0039_1.jpg?v=1771963791"}],"url":"https:\/\/www.edoperformance.com\/collections\/products.oembed?page=7","provider":"EDO Performance","version":"1.0","type":"link"}