WRXLINK (3-4)- WRX4X
Free yourself from the constraints of the factory ECU. 
NEW G4X Link of ECUs! Faster with advanced tuning features!
The Link G4X WRXLink (3-4) WRX4X PlugIn fits the Subaru WRX & STI V3-4. The ECU PCB fits discretely inside the original factory enclosure.
Installation of Link's Subaru WRX4X ECU is a breeze with no alteration of the factory wiring loom required. A built-in connector (or pins in some models) provides additional inputs and outputs such as oil pressure inputs or anti-lag / logging switches.
Factory features are supported - see Features for any exceptions.
MAP Sensor not included.
 Need more inputs and outputs? 
The XS Expansion Loom offers the ability to add additional inputs & outputs on our range of plug-in ECUs.
Features
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
 - Up to 32Mbit internal logging memory
 - Staged injection
 - Knock with "windowing"