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 is a breeze, with no alteration of the factory wiring loom required for the models listed below.
Designed for the WRX V10 EJ25. These ECUs cover 2.5L from 2004 to 2007.
- Please check your connector matches the header in the listed photo and check the notes in italic below before purchasing.
- This ECU works for manual transmissions only.
- Air temp sensor highly recommended.
- Most factory features are supported.
- Check the features tab for I/O expansion options
Suitable Applications:
The WRX104X (listed separately) mostly covered the 2004-2006 range.
The WRX107X mostly covers the 2007 model.
However, some 2006 models require the WRX107X
*The fastest and most reliable way to tell, is to check whether pins A1-3 are populated.
*If the pins have wires, you need the WRX104X, if there are no wires, you need the WRX107X
*Suits GD or GG chassis with electronic throttle. Not suitable for the GR/GH/GE/GV hatchback or 3rd generation WRX’s
