This engine loom is specifically designed for use with a stock engine and seamlessly integrates with your Ecumaster ECU to effortlessly run the M42 engine. With hassle-free plug-and-play functionality, our loom is the perfect solution for a smooth engine management experience. When ordering, simply let us know which ECU version you require the loom to be made for. Additionally, this loom comes equipped with an IAT sensor and wideband wiring for added convenience. Choose ease and reliability with this well designed engine loom adapter