The WRXLink WRX4X – Subaru WRX/STI V3-4 is a genuine Link plug-in ECU that installs directly into the factory ECU connector on the Subaru WRX/STI V3-4 — full standalone engine management with no cut wiring. Tuned in Link’s free PC Link software, with onboard logging, motorsport functions and room to grow.
Fitment: Subaru WRX/STI V3-4.
Platform: Subaru.
Lead Time & Notes
- Lead time: made to order — ships in 1–2 weeks. Each unit is genuine Link Engine Management, sourced and checked by EuroSpec before dispatch.
- Part number: Link 227-4000.
- Warranty: Link ECUs carry a lifetime warranty to the original purchaser (non-transferable), covering manufacturing defects.
- Tuning: requires professional tuning in Link PC Link software.
- Compliance: off-road / motorsport use only.
- Support: Australian Link dealer support.









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