Nexus S3 Plug 'n' Play Adapter Harness Kit - Subaru WRX / STI MY11-19 (Australian Delivered Models Only)

The Haltech Nexus S3 Plug 'n' Play Adapter Harness Kit eliminates custom wiring when upgrading Australian-delivered MY11-19 Subaru WRX and STI models to Nexus S3 engine management. This application-specific harness replicates factory connectors and pinouts, enabling direct installation without cutting the OE loom. Designed exclusively for Australian-spec GE, GH, GR, GV and VAB chassis STI variants, it maintains all critical sensor inputs and actuator outputs while providing access to Nexus S3's advanced tuning capabilities. Genuine Haltech engineering ensures reliable integration with factory peripheral systems.