Haltech Nexus S3 Plug 'n' Play Adapter Harness Kit - Mazda RX7 FD S7 & 8

The Haltech Nexus S3 Plug 'n' Play Adapter Harness Kit delivers seamless integration between Nexus S3 engine management and Mazda RX7 FD models equipped with factory S7 and S8 ECUs. This purpose-built harness eliminates cutting or splicing of the original loom, maintaining factory connectors while unlocking full standalone ECU functionality. Designed for rotary specialists and performance workshops, it streamlines installation and reduces fitment time. The adapter harness preserves OEM sensor compatibility whilst enabling advanced tuning control over ignition, fuel delivery and auxiliary systems specific to the rotary platform.