For Cadillac For CTS For STS 12632255 0261500056 6 Piece 12638530 12611545 Fuel Injector Enhanced Engine Functionality; This fuel injector promotes smooth engine operation and balances fuel supply. Improved Vehicle Performance; By optimizing the combustion process and ensuring a continuous fuel supply to the engine, it improves vehicle performance while reducing environmental impact. Improved fuel efficiency: Helps reduce fuel consumption and save on daily driving costs Effectively improved throttle response: Makes acceleration more linear and the driving experience smoother, Manufacturer: TENGFEIBAIHUO