G4X PlugIn ECU WRXLink (04) - WRX104X


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 WRX104+ mostly covered the 2004-2006 range. 
The WRX107+ mostly covers the 2007 model (listed separately). 
However, some 2006 models require the WRX107+ 
*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 WRX104+, if there are no wires, you need the WRX107+ 

*Suits GD or GG chassis with electronic throttle.  Not suitable for the GR/GH/GE/GV hatchback or 3rd generation WRX’s

      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"

      I/O Expansion Options:
      The following expansion connector inputs/outputs are provided: 
      Expansion connector 1  
      Gnd                Sensor Ground Only  
      +5V Out        Low Current +5V Supply 
      DI6                Digital Input 
      DI7                Digital Input 
      An Volt 5        Analog 0-5V input 
      An Volt 6        Analog 0-5V input 
      An Temp 3        Temperature sensor input 
      An Temp 4        Temperature sensor input 

      Expansion connector 2 
      Ign 5                Ignition 5 Auxiliary output 
      Ign 6                Ignition 6 Auxiliary output 
      Ign 7                Ignition 7 Auxiliary output 
      DI 8                Digital Input 
      Volt 8                Analog 0-5V input 
      Volt 9                Analog 0-5V input 
      Volt 10                Analog 0-5V input 
      Volt 11                Analog 0-5V input