Nexus S2/S3 Plug n Play Adapter Harness - Mazda RX7 FD S6

The Haltech Nexus S2/S3 Plug n Play Adapter Harness is purpose-built for Mazda RX7 FD S6 installations, delivering a direct connection between the Nexus S2 or S3 ECU and the factory wiring system. This adapter harness removes the need for cutting, splicing or modifying the original loom, allowing professional tuners to integrate advanced engine management without permanent alterations. Factory-matched connectors ensure reliable communication with sensors, injectors and ignition components, while maintaining complete functionality across all engine systems. Ideal for workshops seeking efficient, repeatable ECU upgrades on rotary platforms.