It effectively resolves issues common to dual-clutch transmissions—such as shifting shock, abnormal noises, and power interruptions—thereby ensuring the stability of the transmission system. 6L45 6L80 GA6L45R RWD Transmission Control Unit with Valve Body Mechatronics TCU fit for BMW E81 E93 fit for Cadillac fit for Chevrolet. OEM NO. : 6L45 6L80 GA6L45R. Optimized Performance:Enhances your vehicle's transmission with , delivering smooth and efficient shifts., Manufacturer: BJUHIKI