Link ECU Mazda Plug-In ECUs

Link G4X plug-in ECUs for Mazda vehicles provide direct-fit engine management with no modification to the factory wiring loom. Each ECU installs into the original ECU enclosure and retains key OEM functionality while delivering advanced tuning control through the Link G4X platform.

This collection includes plug-in ECUs for Mazda platforms such as MX5 (NA, NB), RX7 (Series 6–8), and other supported rotary and piston engine applications. All units are designed for manual transmission vehicles unless otherwise stated.

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