This engine control unit is designed for use with BMW models E30 325e, E28 525e, and 528e. It is a reliable and efficient component that enables smooth operation of your vehicle's engine. The unit is compatible with M20 2.7 and M20B27 engines and ensures that your BMW runs optimally. With this ECU, you can enjoy a seamless driving experience without worrying about the condition of your BMW's engine. It is a must-have for any BMW owner looking to enhance the performance of their vehicle. Purchase this unit today and take your BMW to the next level.