The ACDelco GM Original Equipment Fuel Injection Throttle Body is a GM-recommended replacement for your vehicle's original component. It is located on the intake manifold, and contains the throttle plate(s) that control the air entering the engine. The throttle body also houses the fuel injector(s) on Throttle Body Injection (TBI) or Central Fuel Injection (CFI) systems. This original equipment fuel injection throttle body has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.