Haltech Nexus S3 Plug 'n' Play Adapter Harness Kit - Mazda RX7 FD S6

The Haltech Nexus S3 Plug 'n' Play Adapter Harness Kit delivers streamlined ECU installation for Mazda RX7 FD Series 6 builds. Designed to integrate the Nexus S3 platform with factory wiring, this adapter eliminates the need to modify or splice original looms. Purpose-built for the FD rotary configuration, it maintains OEM connectors while unlocking advanced engine management capabilities. Ideal for workshop installations requiring clean, reversible ECU conversions that preserve vehicle integrity and reduce fitment time on RX7 FD platforms.