Easy to install. Affordable. Reliable.
G4X PlugIn ECUs offer the latest in engine management technology, designed to easily maximize the potential from your car.
This ECU fits inside the factory OEM enclosure. Installation of the processing unit is a breeze, with no alteration of the factory wiring loom required for the models listed below.
Designed for the WRX V7-9 EJ20 (GD/GG chassis, MY2000-2007 with cam control, 2.0L models only).
- Please check your connector matches the header in the listed photo before purchasing. This ECU fits 5 Plug ECUs.
- This ECU works for manual transmissions only.
- Air temp sensor highly recommended.
- Most factory features are supported.
- Check the features tab for I/O input & output expansion options.
WRXLink (V10) - WRX107X
Easy to install. Affordable. Reliable.
The Link G4X PlugIn ECU transforms your WRX into a precision-tuned performance machine. Enjoy the latest in engine management technology, fitted directly into your OEM enclosure with no loom modifications required.
Choose the Right Model – Pin Check Required!
The fastest and most reliable way to determine which ECU you need is to check pins A1–A3 on the OEM connector:
- If pins A1–A3 have wires → You need the WRX104X.
- If pins A1–A3 are empty → You need the WRX107X (this listing, 225-4000)
Some late 2006 cars require the WRX107X, so this check is essential.
Vehicle Compatibility
- Designed for WRX V10 EJ25 (2.5L) 2004–2007
- Manual transmission only
- Suits GD/GG chassis with electronic throttle
- Not suitable for GR/GH/GE/GV hatchback or 3rd generation WRX
Model breakdown:
WRX104X → Mostly covers 2004–2006
WRX107X → Covers 2007 and some late 2006
Why Choose Link G4X?
- Factory fit, motorsport power – fits inside the OEM case, yet offers world-class tuning flexibility.
- Plug & play install – no wiring loom alterations for supported models.
- Confidence & reliability – trusted by tuners worldwide.
- Full feature set – advanced boost control, antilag, launch, knock protection & more.
