Subaru WRX & WRX STI V11 EJ20/EJ25 Turbo Plug-in ECU

Easy to install. Affordable. Reliable.

G4X Plug-in ECUs offer the latest in engine management technology, designed to easily maximize the potential of 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.

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

Designed for the WRX & WRX STI V11 EJ20/EJ25 Turbo (GR/GV/GH/GE chassis, MY2007-2011, Denso ECU from factory). All factory functions including DCCD, hill start assist, SI drive, cruise control, cam control & ABS supported.

Note: Supports North American models with Denso ECU from late 2007-2010 only. Some North American models have a Hitachi ECU which is not supported. Check with our tech support team if you are unsure.

Please check your connector matches the header in the listed photo before purchasing.
This ECU works for manual transmissions only.
An air temp sensor is highly recommended.
Most factory features are supported.
Check the features tab for I/O expansion options.

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.

G4X Plug-in Key Features (where applicable):

Up to 6D fuel and ignition mapping.
Precision closed loop cam control (four cams, independent control).
Sequential fuel delivery.
Digital triggering, all OEM patterns.
OEM idle hardware supported.
5D boost control with three switchable tables.
Motorsport features - anti-lag, launch, flat shift.
Continuous barometric correction (on board).
CAN port.
Quick Tune - automated fuel tuning.
Individual cylinder correction.
USB tuning cable included.
Stats recording into on-board memory.
Gear compensations for spark, boost and fuel.
Real time selectable dual fuel, ignition and boost maps.
Sync and crank sensors can be a combination of Hall effect, variable reluctance or optical.
Boost control referenced to gear, speed or throttle position.
512 mega bytes data logging memory.
Staged injection.
Knock with "windowing".

I/O Options:

The following expansion connector inputs/outputs are provided:
Expansion connector 1
Pin 1   Aux 16
Pin 2   DI 11
Pin 3   An Temp 4
Pin 4   Knock 2
Pin 5 Injector 6

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Link ECU - G4X WRXLink - WRX11X Plug-in ECU