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Link ECU Engine Management (G4X Plug-In & Wire-In)

If you’re done guessing and ready to control fuel, ignition, boost, and safety strategies the right way, Link ECU is the move. We work directly with the Link team and back it up with an in-house tuning crew with 25 years of real tuning experience—so you’re not just buying a box, you’re buying a plan. Link’s ecosystem is built around PCLink software for configuration, live tuning, and data log analysis, with a proven support/reseller network behind it. 

  • Direct access to Link product guidance + dealer-level support

  • 25-year tuner team for setup direction & sanity checks

  • Plug-in ECUs for clean installs, wire-in ECUs for full custom builds

  • PCLink support: configure, tune, log, refine

Choose the right Link ECU: Plug-In vs Wire-In

Plug-In ECUs are the fastest path to a clean, OEM-like install on supported platforms (great for street cars, track cars, and mild-to-wild builds).
Wire-In ECUs are for full control: engine swaps, custom harnesses, race cars, and anything outside the normal playbook.

PCLink tuning software

Link’s PCLink is the control center—use it to configure ECU functions, tune in real time, and analyze logs so your changes are based on data, not vibes.

G4X platform note

The G4X range is widely used for performance applications, and Link positions it as a high-performance ECU choice for many builds (with feature needs determining whether you step up).

FAQ

Q1: What is a Link ECU and what does it control?
A Link ECU is the engine control unit that manages key engine parameters and lets you tune fuel, ignition, boost strategies, and integration with sensors/devices for performance and reliability.

 

Q2: Do I need a plug-in or wire-in Link ECU?
Plug-in is best when your vehicle has a supported application and you want a clean install. Wire-in is best for custom builds, swaps, or when you need full flexibility.

 

Q3: What software do I use to tune a Link ECU?
Link uses PCLink for ECU configuration, live tuning, and data log analysis.

 

Q4: Can you help me pick the right ECU for my build?
Yes—this is the whole point. We work directly with the Link team and our tuner staff has 25 years of tuning experience, so we’ll steer you to the right ECU path before you waste money.

 

Q5: Do you provide support after I buy?
Yes—setup guidance, common configuration pitfalls, and log-based troubleshooting help (when appropriate). Link also maintains a global dealer/support network.

 

Q6: Where can I find official manuals and documentation?
Link hosts official manuals for G4X/G4+ and many vehicle-specific plug-in applications.

 

✅ Shop the Link Engine Management

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  • Link Engine Management Tuning Cable (CUSB)

    Link Engine Management Tuning Cable (CUSB)

    Link Engine Management
    $ 67.00 - $ 67.00
    $ 67.00
    $ 67.00 - $ 67.00
    $ 67.00
    In stock

    Details Link CAN to USB Tuning Cable. Used to connect the ECU to a computer via USB. A CAN to Serial cable is also available. Compatible with: Lin...

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    $ 67.00 - $ 67.00
    $ 67.00
    $ 67.00 - $ 67.00
    $ 67.00
  • Link Engine Management Old G4 Atom & Lightning 5m (5LT)

    Link Engine Management Old G4 Atom & Lightning 5m (5LT)

    Link Engine Management
    $ 220.00 - $ 220.00
    $ 220.00
    $ 220.00 - $ 220.00
    $ 220.00
    In stock

    Backorder - Lead time: 3-4 weeks. Check with the support to confirm. T Loom long - 5m (NOT for G4+ Atom)

    $ 220.00 - $ 220.00
    $ 220.00
    $ 220.00 - $ 220.00
    $ 220.00
  • Link Engine Management B Loom Long (5LB)

    Link Engine Management B Loom Long (5LB)

    Link Engine Management
    $ 230.00 - $ 230.00
    $ 230.00
    $ 230.00 - $ 230.00
    $ 230.00
    In stock

    Details 5 m long 'B' loom to suit G4, G4+ and G4X ECUsPerfect for all custom wiring jobs utilising Link WireIn ECUs. The ‘B’ Loom has a Link ‘B’ E...

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    $ 230.00 - $ 230.00
    $ 230.00
    $ 230.00 - $ 230.00
    $ 230.00
  • Link Engine Management A Loom Long (5LA)

    Link Engine Management A Loom Long (5LA)

    Link Engine Management
    $ 230.00 - $ 230.00
    $ 230.00
    $ 230.00 - $ 230.00
    $ 230.00
    In stock

    Details 5 m long 'A' loom to suit G4, G4+ and G4X ECUsPerfect for all custom wiring jobs utilising Link WireIn ECUs. The ‘A’ Loom has a Link ‘A’ E...

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    $ 230.00 - $ 230.00
    $ 230.00
    $ 230.00 - $ 230.00
    $ 230.00
  • Link Engine Management B Loom Medium (2LB)

    Link Engine Management B Loom Medium (2LB)

    Link Engine Management
    $ 195.00 - $ 195.00
    $ 195.00
    $ 195.00 - $ 195.00
    $ 195.00
    In stock

    Details 2.5 m long 'B' loom to suit G4, G4+ and G4X ECUsPerfect for all custom wiring jobs utilising Link WireIn ECUs. The ‘B’ Loom has a Link ‘B’...

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    $ 195.00 - $ 195.00
    $ 195.00
    $ 195.00 - $ 195.00
    $ 195.00
  • Link Engine Management A Loom Medium (2LA)

    Link Engine Management A Loom Medium (2LA)

    Link Engine Management
    $ 195.00 - $ 195.00
    $ 195.00
    $ 195.00 - $ 195.00
    $ 195.00
    In stock

    Details 2.5 m long 'A' loom to suit G4, G4+ and G4X ECUsPerfect for all custom wiring jobs utilising Link WireIn ECUs. The ‘A’ Loom has a Li...

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    $ 195.00 - $ 195.00
    $ 195.00
    $ 195.00 - $ 195.00
    $ 195.00
  • Link Engine Management B Loom Short (0LB)

    Link Engine Management B Loom Short (0LB)

    Link Engine Management
    $ 90.00 - $ 90.00
    $ 90.00
    $ 90.00 - $ 90.00
    $ 90.00
    In stock

    Details 0.4m long 'B' loom to suit G4, G4+ and G4X Wire-In ECUsPerfect for all custom wiring jobs utilising Link WireIn ECUs. The ‘B’ Loom has a L...

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    $ 90.00 - $ 90.00
    $ 90.00
    $ 90.00 - $ 90.00
    $ 90.00
  • Link Engine Management A Loom short (0LA)

    Link Engine Management A Loom short (0LA)

    Link Engine Management
    $ 90.00 - $ 90.00
    $ 90.00
    $ 90.00 - $ 90.00
    $ 90.00
    In stock

    Details 0.4m long 'A' loom to suit G4, G4+ and G4X Wire-In ECUsPerfect for all custom wiring jobs utilising Link WireIn ECUs. The ‘A’ Loom has a L...

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    $ 90.00 - $ 90.00
    $ 90.00
    $ 90.00 - $ 90.00
    $ 90.00
  • Link Engine Management Pin Kit D (TKD)

    Link Engine Management Pin Kit D (TKD)

    Link Engine Management
    $ 47.00 - $ 47.00
    $ 47.00
    $ 47.00 - $ 47.00
    $ 47.00
    In stock

    Details Housing and 26 terminals for D connector. Plug and Pin kit only.Suitable for: G4+ Thunder

    $ 47.00 - $ 47.00
    $ 47.00
    $ 47.00 - $ 47.00
    $ 47.00
  • Link Engine Management Pin Kit C (TKC)

    Link Engine Management Pin Kit C (TKC)

    Link Engine Management
    $ 47.00 - $ 47.00
    $ 47.00
    $ 47.00 - $ 47.00
    $ 47.00
    In stock

    Details Housing and 26 terminals for C connector. Plug and Pin Kit Only.Suitable for: G4+ Thunder Obsolete G4 Atom and Lightning. (Not G4+ or G4X ...

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    $ 47.00 - $ 47.00
    $ 47.00
    $ 47.00 - $ 47.00
    $ 47.00
  • Link Engine Management Mounting bracket for G4+ & G4X Fury, Xtreme, Storm, Force (MTB1)

    Link Engine Management Mounting bracket for G4+ & G4X Fury, Xtreme, Storm, Force (MTB1)

    Link Engine Management
    $ 35.00 - $ 35.00
    $ 35.00
    $ 35.00 - $ 35.00
    $ 35.00
    In stock

    Mounting bracket for G4+ & G4X Fury, Xtreme, Storm, Force (MTB1)

    $ 35.00 - $ 35.00
    $ 35.00
    $ 35.00 - $ 35.00
    $ 35.00
  • Link Engine Management G4X VLLink - HVLC

    Link Engine Management G4X VLLink - HVLC

    Link Engine Management
    $ 1,650.00 - $ 1,650.00
    $ 1,650.00
    $ 1,650.00 - $ 1,650.00
    $ 1,650.00
    In stock

    Details Easy to install. Affordable. Reliable.  G4X PlugIn ECUs offer the latest in engine management technology, designed to easily maximize the p...

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    $ 1,650.00 - $ 1,650.00
    $ 1,650.00
    $ 1,650.00 - $ 1,650.00
    $ 1,650.00
  • Link Engine Management G4 KnockLink Kit - Includes Knock Sensor+Loom (G4KNLK)

    Link Engine Management G4 KnockLink Kit - Includes Knock Sensor+Loom (G4KNLK)

    Link Engine Management
    $ 375.00 - $ 375.00
    $ 375.00
    $ 375.00 - $ 375.00
    $ 375.00
    In stock

    Details Kit includes the G4 KnockLink visual warning light and a knock sensor with loom. The KnockLink is a self-calibrating, visual knock warning ...

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    $ 375.00 - $ 375.00
    $ 375.00
    $ 375.00 - $ 375.00
    $ 375.00
  • Link Engine Management KnockLink G4 (G4KNL)

    Link Engine Management KnockLink G4 (G4KNL)

    Link Engine Management
    $ 240.00 - $ 240.00
    $ 240.00
    $ 240.00 - $ 240.00
    $ 240.00
    In stock

    Details KnockLink is a self-calibrating, visual knock warning tool. The KnockLink is designed for tuning, street and race use. Will require a knoc...

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    $ 240.00 - $ 240.00
    $ 240.00
    $ 240.00 - $ 240.00
    $ 240.00
  • Link Engine Management Superseal Plug and Pin Kit B (TKB)

    Link Engine Management Superseal Plug and Pin Kit B (TKB)

    Link Engine Management
    $ 50.00 - $ 50.00
    $ 50.00
    $ 50.00 - $ 50.00
    $ 50.00
    In stock

    Details Equivalent plug (connector) and pins as "B" Loom. Plug and Pin Kit only.Suitable for: Link G4X Storm (Loom A/Pin Kit A also required) Lin...

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    $ 50.00 - $ 50.00
    $ 50.00
    $ 50.00 - $ 50.00
    $ 50.00
  • Link Engine Management Superseal Plug and Pin Kit A (TKA)

    Link Engine Management Superseal Plug and Pin Kit A (TKA)

    Link Engine Management
    $ 50.00 - $ 50.00
    $ 50.00
    $ 50.00 - $ 50.00
    $ 50.00
    In stock

    Details Equivalent plug and pins as "A" Loom. Plug and Pin Kit only.Suitable for:  All Link G4X WireIn ECU’s (Note: Loom B/Pin Kit B will a...

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    $ 50.00 - $ 50.00
    $ 50.00
    $ 50.00 - $ 50.00
    $ 50.00
  • Link Engine Management Housing & Terminals (TK G3 Link Plus)

    Link Engine Management Housing & Terminals (TK G3 Link Plus)

    Link Engine Management
    $ 55.00 - $ 55.00
    $ 55.00
    $ 55.00 - $ 55.00
    $ 55.00
    In stock

    Details G3 LinkPlus models. 74 way housing

    $ 55.00 - $ 55.00
    $ 55.00
    $ 55.00 - $ 55.00
    $ 55.00
  • Link Engine Management Housing & Terminals (TK G3 LEM)

    Link Engine Management Housing & Terminals (TK G3 LEM)

    Link Engine Management
    $ 30.00 - $ 30.00
    $ 30.00
    $ 30.00 - $ 30.00
    $ 30.00
    In stock

    Details To suit G3 LEM models only. 26 way housing and terminals

    $ 30.00 - $ 30.00
    $ 30.00
    $ 30.00 - $ 30.00
    $ 30.00
  • Link Engine Management Housing & Terminals (TK G1 LEM)

    Link Engine Management Housing & Terminals (TK G1 LEM)

    Link Engine Management
    $ 30.00 - $ 30.00
    $ 30.00
    $ 30.00 - $ 30.00
    $ 30.00
    In stock

    Details To suit G1 models. 17 way housing and terminals

    $ 30.00 - $ 30.00
    $ 30.00
    $ 30.00 - $ 30.00
    $ 30.00
  • Link Engine Management Knock Sensor with Loom (KNSB)

    Link Engine Management Knock Sensor with Loom (KNSB)

    Link Engine Management
    $ 130.00 - $ 130.00
    $ 130.00
    $ 130.00 - $ 130.00
    $ 130.00
    In stock

    Details Donut style 8mm Knock Sensor prewired with 2.6m loom, flying leads.  Suitable to wire directly to Link ECU or use with the G4 Knockl...

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    $ 130.00 - $ 130.00
    $ 130.00
    $ 130.00 - $ 130.00
    $ 130.00
  • Link Engine Management Boost Control Solenoid - 3 Port (3BCS)

    Link Engine Management Boost Control Solenoid - 3 Port (3BCS)

    Link Engine Management
    $ 150.00 - $ 150.00
    $ 150.00
    $ 150.00 - $ 150.00
    $ 150.00
    In stock

    Details More boost? Of course and this 3 port boost control solenoid will help you do it. 3 port boost control solenoids are the go-to for the majo...

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    $ 150.00 - $ 150.00
    $ 150.00
    $ 150.00 - $ 150.00
    $ 150.00
  • Link Engine Management Ballast Resistor (BAL6)

    Link Engine Management Ballast Resistor (BAL6)

    Link Engine Management
    $ 130.00 - $ 130.00
    $ 130.00
    $ 130.00 - $ 130.00
    $ 130.00
    In stock

    Details For use with low-impedance injectors. Compatible with injectors with impedance between 2 and 6 Ohms. Please contact us if you are planning ...

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    $ 130.00 - $ 130.00
    $ 130.00
    $ 130.00 - $ 130.00
    $ 130.00
  • Link Engine Management Ballast Resistor (BAL4)

    Link Engine Management Ballast Resistor (BAL4)

    Link Engine Management
    $ 115.00 - $ 115.00
    $ 115.00
    $ 115.00 - $ 115.00
    $ 115.00
    In stock

    Ballast Resistor, 4R7 25W x 4 for 2-6 Ohm injectors

    $ 115.00 - $ 115.00
    $ 115.00
    $ 115.00 - $ 115.00
    $ 115.00
  • Link Engine Management Ballast Resistor (BAL2)

    Link Engine Management Ballast Resistor (BAL2)

    Link Engine Management
    $ 95.00 - $ 95.00
    $ 95.00
    $ 95.00 - $ 95.00
    $ 95.00
    In stock

    Details For use with Low-Impedence Injectors. Includes set of 2 x 1 Ohm 50w resistors mounted to a heatsink. These are also sold in a single pack. ...

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    $ 95.00 - $ 95.00
    $ 95.00
    $ 95.00 - $ 95.00
    $ 95.00