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 processing unit is a breeze, with no alteration of the factory wiring loom required for the models listed below. 

Due to the amount of variation on this vehicle, please ensure you read the Configuration - Memo Text in PCLink.

This product supports the following models:

• 2007-2014 WRX and WRX STI with GR/GV/GH/GE chassis codes, for JDM/AUDM/SADM/EURO markets, with turbocharged EJ20 or EJ25 engines.
• 2008-2010 USDM models which have the common international Denso ECU Pinout**
• 2015-2021 WRX STI with VAB/VAF chassis codes, for JDM/AUDM/SADM/EURO markets, with turbocharged EJ20 or EJ25 engines

**Note: Refer to the supported models document below for more detail. 2011 and later USDM models are supported by our WRX11 USDM ECU

Take a look at our supported models list to find out which models are supported and which are not. Alternatively, contact your LinkECU (That us, Oprah Built!) Reseller or our 24/6 Tech Support Team.

Important Notes

• Please check your connector matches the header in the listed photo before purchasing. 
• This ECU works for manual transmissions only.  
• Air temp sensor highly recommended. 
• Most factory features are supported including DCCD, hill start assist, SI drive, cruise control, cam control & ABS supported. 
• Check the features tab for I/O input & output expansion options.
• The security/immobiliser lamp may remain illuminated in some models

Note: This Plug-in features a new 4 pin powered CAN connector and cannot use the old CANPCB cable for CAN connection.  Use the CANJST4 (Link PN 101-0198) cable for connecting CAN devices.  This new 4 pin port and cable provide not only the CAN connection, but also a protected 12V power supply and ground for powering the CAN devices.  The power supply is protected by a self-resetting fuse rated at 3A continuous.