WRXLink (3-4) - WRX4X

The Link ECU WRXLink WRX4X is a dedicated plug-in engine management solution engineered specifically for third and fourth generation Subaru WRX models. This ECU maintains factory wiring integration whilst unlocking comprehensive tuning control over fuel, ignition, boost and auxiliary functions. Built on Link's proven platform, the WRX4X provides Australian tuners with flexible mapping tools, extensive sensor support and real-time data logging. Ideal for workshops seeking reliable aftermarket engine management with complete calibration freedom for performance builds and forced induction upgrades.