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In 2002, Justin Grimm developed his passion for Subaru, often taking cars apart and finding ways to improve their performance. As his passion grew, he decided to turn it into a business, especially when he realized there was a market for aftermarket performance parts.
Initially housed in a single stall garage in Maplewood, Minnesota, GrimmSpeed was founded in 2006 by Justin Grimm and a group of Subaru enthusiasts. Initially, the focus was solely on producing aftermarket parts for Subaru vehicles. As the company grew, they expanded into other brands such as Ford, Mitsubishi, Lexus & Scion.
Parts like the GrimmSpeed Boost Control Solenoid (for the Mitsubishi Lancer Evolution X) lives up to the high-quality reputation that GrimmSpeed is known for. It is designed to work with the vehicle’s factory computer. Because it draws the same amount of power as the factory computer, it does not reduce the computer’s life. Installation is easy and requires no splicing or soldering of resistors. As easy as it is to install, is as easy as it is to remove in the event that you would return the car to its stock specifications.
Another noteworthy part to mention is the GrimmSpeed Up Pipe All Turbo (For Subaru). Making this addition to your Subaru is highly recommended, it is arguably one of the best cash to horsepower ratios. The Up-Pipe All Turbo has a premium heavy-duty construction, which was fabricated by a welder certified in Aerospace Welding. This simply means this part can definitely handle some abuse. After installation, you can generally expect to see an increase of about 8-10 horsepower and a quicker spool up of about 300-400 rpm.
$ 79.00
Improve style and Increase Flow! Most adjustability available on the market! Mounts in OEM tow hook location(No cutting or drilling required) Simple stainless steel allen key hardware Will not block...
$ 110.00
The Most COMPLETE EVO BCS Ever Built, Period. Get into Boost Much Quicker(Flows 10% more than the competition) Plug and Play into OEM Harness(no splicing wire like other BCS!) Factory...
$ 110.00
The Most COMPLETE EVO BCS Ever Built, Period. Get into Boost Much Quicker(Flows 10% more than the competition) Plug and Play into OEM Harness(no splicing wire like other BCS!) Factory...
$ 95.00
Improve pedal feel and braking capabilities! Most Bracket Mounting Points Available!(4 strut tower mounting points) Fits EVO 8/9 Indestructible 12L14 CNC Laser cut construction and black powder coating Pedal feel dramatically improved(Similar...
$ 110.00
The MOST COMPLETE AND BEST PERFORMING MazdaSpeed BCS Ever Built, Period. Get into Boost Much Quicker(Flows 10% more than the competition) Plug and Play into OEM Harness(no splicing wire like other BCS!)...
$ 110.00
The MOST COMPLETE AND BEST PERFORMING MazdaSpeed BCS Ever Built, Period. Get into Boost Much Quicker(Flows 10% more than competition) Plug and Play into OEM Harness(no splicing wire like other BCS!) Factory...
$ 79.00
Improve style and Increase Flow! Most adjustability available on the market! Mounts in OEM tow hook location(No cutting or drilling required) Simple stainless steel allen key hardware Will not block...
$ 79.00
Improve style and Increase Flow! Most adjustability available on the market! Mounts in OEM tow hook location(No cutting or drilling required) Simple stainless steel allen key hardware Will not block...
$ 79.00
Improve style and Increase Flow! Most adjustability available on the market! Mounts in OEM tow hook location(No cutting or drilling required) Simple stainless steel allen key hardware Will not block...
$ 65.00
NOTE: Fitment is for 2010-2012 Do you know what your intake manifold sits on?...a superheated engine. If you don't know already, the cooler your intake air is the more HP...
$ 65.00
NOTE: Fitment is for 2010-2012 Do you know what your intake manifold sits on?...a superheated engine. If you don't know already, the cooler your intake air is the more HP...
$ 75.00
Do you know what your intake manifold sits on?...a superheated engine. If you don't know already, the cooler your intake air is the more HP your car will achieve. We...
$ 79.00
Improve style and Increase Flow! Most adjustability available on the market! Mounts in OEM tow hook location (No cutting or drilling required) Simple stainless steel allen key hardware Will not...
$ 135.00
You’ve probably read somewhere on the internet that a strut tower brace never does anything but look pretty. You’re about to read otherwise. Armed with a strong background in vehicle...
$ 135.00
You’ve probably read somewhere on the internet that a strut tower brace never does anything but look pretty. You’re about to read otherwise. Armed with a strong background in vehicle...
$ 125.00
Screw generics. Hood struts, designed just for your BRZ/FR-S. Tired of that ugly OEM hood prop blocking your view of that beautiful FA20 boxer engine? Always wanted to open your...
$ 55.00
Product Features: Individually Hand Painted Fits all Subaru models and Toyota FR-S(Impreza, WRX, STi, Legacy, Forester, Baja, BRZ) CNC Milled 6061 Billet Aluminum Show-off your boxer PRIDE! CNC Milled GrimmSpeed Logo...
$ 95.00
Hands down most detailed Oil Cap out there! Fits all Subaru BRZ and Toyota FR-S Individually Hand Painted CNC Milled 6061 Billet Aluminum Show-off your BRZ/FR-S PRIDE! Intricate domed top Welcome to...
$ 95.00
Improve pedal feel and braking capabilities! Large diameter Force Distribution Cap(Will not mar and damage the master cylinder like other braces) Fits both Autos and Manuals Indestructible CNC Laser cut...
$ 75.00
NOTE: When installing on the Impreza Phase 1 you will have to cut your EGR tube in half and insert a heater hose between the the halves of the EGR...
$ 75.00
In response to the demand to extend our Phenolic Spacer lineup to include some of the older subaru models, we now have created intake manifold thermal spacers for 99+ 2.5...
$ 75.00
In response to the demand to extend our Phenolic Spacer lineup to include some of the older subaru models, we now have created intake manifold thermal spacers for 93-99 1.8L/2.2L...
$ 85.00
Do you know what your intake manifold sits on?...a superheated boxer engine. If you don't know already, the cooler your intake air is the more HP your car will achieve....
$ 65.00
Do you know what your intake manifold sits on?...a superheated boxer engine. If you don't know already, the cooler your intake air is the more HP your car will achieve....
$ 79.00
Improve style and Increase Flow! Most adjustability available on the market! Mounts in OEM tow hook location (No cutting or drilling required) Simple stainless steel allen key hardware Will not...
$ 79.00
Improve style and Increase Flow! Most adjustability available on the market! Mounts in OEM tow hook location (No cutting or drilling required) Simple stainless steel allen key hardware Will not...
$ 79.00
Improve style and Increase Flow! Most adjustability available on the market! Mounts in OEM tow hook location (No cutting or drilling required) Simple stainless steel allen key hardware Will not...
$ 79.00
Improve style and Increase Flow! Most adjustability available on the market! Mounts in OEM tow hook location (No cutting or drilling required) Simple stainless steel allen key hardware Will not...
$ 880.00
Meticulous engineering meets elegant design. With the 2015 J-Pipe, the devil is truly in the details and the product development team here at GrimmSpeed has taken the time necessary to...
$ 695.00
Meticulous engineering meets elegant design. With the 2015 J-Pipe, the devil is truly in the details and the product development team here at GrimmSpeed has taken the time necessary to...
$ 730.00
Meticulous engineering meets elegant design. With the 2015 J-Pipe, the devil is truly in the details and the product development team here at GrimmSpeed has taken the time necessary to...
$ 545.00
Meticulous engineering meets elegant design. With the 2015 J-Pipe, the devil is truly in the details and the product development team here at GrimmSpeed has taken the time necessary to...
$ 60.00
A full External Wastegate (EWG) set-up consists of a EWG up-pipe and a wastegate. The EWG set-up creates better turbo spool because it can utilize the exhaust gas more efficiently;...
$ 60.00
A full External Wastegate (EWG) set-up consists of a EWG up-pipe and a wastegate. The EWG set-up creates better turbo spool because it can utilize the exhaust gas more efficiently;...
$ 95.00
Keep Heat Soak to a Minimum with our Heat Shield! Enhanced Turbo/Downpipe Coverage(Keeps radiant heat out of engine bay) Fits all Factory and Most Aftermarket Turbos on LHD cars only(Designed...
$ 75.00
Keep Heat Soak to a Minimum with our Heat Shield! Enhanced Turbo/Downpipe Coverage(Keeps radiant heat out of engine bay) Fits all Factory and Most Aftermarket Turbos on LHD cars only(Designed...
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An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo. This facilitates lower backpressure at the turbine, allowing for increased boost control, faster spool-up and...
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The perfect EWG solution for 3-bolt headers. An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo. This facilitates lower backpressure at the turbine, allowing...
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The perfect EWG solution for 3-bolt headers. An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo. This facilitates lower backpressure at the turbine, allowing...
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The perfect EWG solution for 3-bolt headers. An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo. This facilitates lower backpressure at the turbine, allowing...
$ 260.00
A TOP OF THE LINE UP PIPE MADE TO BE ABUSED. Adding an aftermarket Up Pipe is one of the first things you should do to your Subaru. Arguably one...
$ 220.00
A TOP OF THE LINE UP PIPE MADE TO BE ABUSED. Adding an aftermarket Up Pipe is one of the first things you should do to your Subaru. Arguably one...
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An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo; creating quicker turbo spool. The GrimmSpeed™ EWG has a larger diameter than a stock internal...
$ 375.00
An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo; creating quicker turbo spool. The GrimmSpeed™ EWG has a larger diameter than a stock internal...
Sold Out
An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo; creating quicker turbo spool. The GrimmSpeed™ EWG has a larger diameter than a stock internal...
$ 250.00
A TOP OF THE LINE UP PIPE MADE TO BE ABUSED. Adding an aftermarket Up Pipe is one of the first things you should do to your Subaru. Arguably one...
$ 210.00
A TOP OF THE LINE UP PIPE MADE TO BE ABUSED. Adding an aftermarket Up Pipe is one of the first things you should do to your Subaru. Arguably one...
$ 250.00
1/2"+ Thick Flanges, 14 Gauge Tubing, TRIPLE Layer Flex Joint. We are DURABILITY. Up until now all of you 06-07 WRX guys have been unable to swap in a higher flowing...
