Nexus S3 Plug 'n' Play Adapter Harness Kit - Subaru GDB WRX MY01-05

The Haltech Nexus S3 Plug 'n' Play Adapter Harness Kit eliminates wiring modifications when installing Nexus S3 ECU systems into 2001-2005 Subaru GDB WRX models. This model-specific harness interfaces directly with factory connectors, maintaining OEM sensor and actuator compatibility whilst enabling full standalone engine management capability. Designed for professional installers, the kit simplifies integration and reduces installation time. Suitable for WRX GD and GG chassis variants plus STi GD applications, ensuring reliable connections throughout the entire engine management circuit without cutting factory looms.