Next-Gen Control for Classic EVOs: Nexus S3 Adaptor Harness
Bring the future of engine management to your Mitsubishi EVO 4-8 or 2G Eclipse with the Haltech Nexus S3 Plug ‘n’ Play Adapter Harness. This harness is designed to interface the powerful Nexus S3 VCU with the factory wiring of 5-speed manual Mitsubishi 4G63T vehicles. It allows you to replace the aging stock ECU with a unit that combines engine control, data logging, wideband control, and power distribution.
Modernizing the Legend
This harness supports all factory engine functions while unlocking the Nexus S3’s advanced capabilities. The auxiliary I/O breakout makes adding sensors for oil pressure, fuel pressure, and ethanol content simple, facilitating a robust flex-fuel setup. With the Nexus S3’s high-speed logging and Wi-Fi connectivity, tuning and monitoring your EVO becomes easier and more precise than ever before.
Technical Specifications
| Feature | Specification |
|---|---|
| Vehicle Suitability | EVO 4-8 (5-spd), Eclipse 2G Turbo |
| Compatible ECU | Haltech Nexus S3 |
| Transmission | Manual Transmission Only |
Kit Includes
- Injection Moulded Plug ‘n’ Play Adaptor Harness
- M14 x 1.5 Air Temp Sensor with Plug & Pins
- Auxiliary I/O 16 Pin Plug & Pins
Note: ECU is NOT included. This is the harness only.








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