Link ECU G4X WRXLink (3-4) WRX4X PlugIn ECU fits the Subaru WRX & STI V3 V4 EJ20

Link ECU G4X WRXLink (3-4) WRX4X PlugIn ECU fits the Subaru WRX & STI V3 V4 EJ20

WRXLINK (3-4) - WRX4X 

JDM - 1997 - 1998

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

Designed for the WRX V3-4 EJ20 

• 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. 
• Check the features tab for I/O expansion options.
• This ECU will need a modification before E-Throttle is usable.

Suitable Applications: 

• GC8D 
• GC8E 
• WRX and STI from 09/1996 to 08/1998

G4X PlugIn Key Features (where applicable):

Up to 6D fuel and ignition mapping

Precision closed loop cam control (four cam, independent control)

Sequential fuel delivery

Digital triggering, all OEM patterns

OEM idle hardware supported

5D boost control with three switchable tables

Motorsport features - antilag, launch, flat shift

Continuous barometric correction (on board)

CAN port

QuickTune - 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"

The following expansion connector inputs/outputs are provided: 

XS connector 1  

Gnd                Sensor Ground Only  

+5V                Low Current +5V Supply 

DI 5                Digital Input 

DI 6                Digital Input 

Volt 5                Analog 0-5V input 

Volt 6                Analog 0-5V input 

Temp 4                Temperature sensor input 

Temp 3                Temperature sensor input 

Expansion connector 2  

Gnd                Sensor Ground Only  

+5V                Low Current +5V Supply 

DI 9                Digital Input 

DI 10                Digital Input 

Volt 8                Analog 0-5V input 

Volt 9                Analog 0-5V input 

Ign 7                Ignition 7 Auxiliary Output 

Ign 8                Ignition 8 Auxiliary Output