Up for sale is a high-performance Engine Control Unit (ECU) for BMW 525i and 530i models manufactured from 2003-2005. This direct replacement ECU is made of durable aluminum and plastic materials and features a fast microprocessor. The unit is designed with a bolt-on mounting style and has a pin terminal type with two terminal quantities. The ECU has OE/OEM part numbers 7537504 and 7 527 015, and interchange part numbers POWERTRAIN CONTROL UNIT, ENGINE COMPUTER, POWERTRAIN CONTROL MODULE, ECU, PCM, ECM. Programming is required for this ECU, and it comes with male connector type. This vintage part is in excellent condition and is ideal for car enthusiasts who want to upgrade their BMW's performance.