E46/E39 - M54 Swap for M52TU Chassis - Wiring Harness Adapter

If you plan on converting from a M52TU engine to a M54 engine in your E46 or E39 chassis, our plug and play harness kits are the easiest way to go.What's included? Detailed installation instructions (Includes required ECU pin changes) Electronic accelerator pedal wiring Various engine wiring connector adapters Extra tool to assist with changing ECU pins Sensors are not included *Photo is for the E46 style kit. Harness adapters will ship 2-3 days after your order is placed. All adapters are made to order. Because of this, neither returns nor exchanges are accepted.  All sales are final.