Nexus S3 Plug ‘n’ Play Adapter Harness Subaru WRX MY06-10

Nexus Connectivity for the 2.5L WRX

The Nexus S3 Plug ‘n’ Play Adapter Harness connects the cutting-edge Nexus S3 VCU to the Australian Domestic Market (ADM) Subaru WRX (MY06-10). This harness-only product is essential for installers who are upgrading to the Nexus system and require a direct interface with the factory Denso wiring loom.

Engineering the Interface

Designed exclusively for the Denso ECU architecture found in ADM models, this harness ensures that the Nexus S3 can accurately read and control the EJ25’s complex systems. This includes the Drive-By-Wire throttle body, AVCS cam timing, and the tumble generator valves (if retained). The harness is constructed with automotive-grade materials to withstand the heat and vibration of the boxer engine bay.

Fitment Guide

Vehicles: Subaru WRX MY06-10 (ADM), STI MY06-07 (ADM)
ECU Type: Denso ECU Only (Not Hitachi)
Requires: Haltech Nexus S3 VCU (Sold Separately)

Technical Specifications

Summary & What’s Included

The specific link for ADM Denso-equipped Subarus.

Includes:

• Plug ‘n’ Play Adaptor Harness
• Air Temp Sensor
• Auxiliary I/O Plugs
• Note: ECU/VCU NOT Included