DIYBOB Breakout Board Kit for Bosch 55 Pin Connector by DIYAutoTune The DIYBOB is a new breakout board from DIYAutoTune Easily build professional looking adapter harnesses to connect the engine management of your choice Works with BMW E30 325i and Many Other BMW and Porsche Applications This one fits cars with a 55 pin Bosch ECU. The DIYBOB includes an OEM style connector, circuit board, and an anodized aluminum case