Plug and play loom for the M3 S54 engine to allow the MBE 9A9 ECU to run the engine and throttle control. Made to works spec utilising Raychem DR-25 heatshrink, Type 44 cable and sealed booted joints.

Wide band lambda sensor, it is currently the most accurate & toughest sensor produced by Bosch to cope with harsh enviroments & is a significant improvement over previous versions. Suitable for use with MBE9A9 ECU, which has built in wide band lambda control.