WRXLink (04) - WRX104X

The Link ECU WRXLink WRX104X delivers comprehensive engine management for 2004-model Subaru WRX platforms. This plug-and-play ECU replaces the factory unit, providing full control over fuel delivery, ignition timing, boost control and more. Built for professional tuners, it features advanced mapping capabilities, real-time data logging and extensive input/output options. The WRX104X offers seamless integration with the factory wiring harness, eliminating the need for complicated modifications while unlocking precise calibration control for performance-focused applications.