Subaru WRX & STI V1-2 Link G4X Plug In ECU
Subaru WRX & STI V1-2 Link G4X Plug In ECU

Subaru WRX & STI V1-2 Link G4X Plug In ECU

Regular price $1,949.00 Sale

This product is the latest Link G4X Subaru WRX & STI V1-2 (93 - 96) Plug-in ECU.

Designed for the WRX V1-2 EJ20. 

  • Please check your pinout 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. 

Suitable Applications: 
WRX and STI from 10/1992 to 8/1996 

EG4X 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: 
Expansion 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 
  • An Temp 2        Temperature sensor input 
  • An 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 

Link G4X ECUs do not require the use of an air flow meter. The engine can be converted to speed density using a MAP sensor and an intake air temperature (IAT) sensor (IAT sensors sold separately)

If you are wanting more boost than the OEM 2 bar map sensor, We can provide a 3 or 4 Bar sensor at extra cost.

The G4X Subaru WRX & STI V1-2 plug-in ECU comes with a non-engine-specific base map. The ECU will need to be configured for the engine type and then tuned by a professional. The ECU comes with free PCLink software.

We can also provide the following with your new Link ECU at an added cost:
- Fuel System Upgrades
- Turbosmart Wastegates, Blow off valves and Fuel Pressure Regulators
- Boost Control Solenoids
- Dyno Tuning
- Engine sensors and plugs etc
- Full Link ECU engine wiring installation available at an extra cost