98-05 3800 Series II simplified harness bundle

Our simplified standalone harness for 98-05 GM 3800 Series II engines is designed for easy setup with new wires and connectors. With just a simple 3-wire connection, installation has never been easier. We offer both types of injector plugs to suit your preference, and we have adapters available to smoothly transition from EV1 to Multec or vice versa. Tuned ecm is included.

These harnesses are compatible with older engine models when paired with a 98-05 ECM. We also provide adapters for different sensor plugs found on older 3800 engines. Please note that these harnesses are intended for off-road use only.

If you have any specific requirements or questions, feel free to let us know!