Fuel injectors are made from durable materials, ensuring long-lasting performance and reliability for your vehicle. Our engine injector can start quickly even in cold environments. Car Fuel Injector For Buick 17089569 Fuel Injector; Fuel injectors directly affect the air/fuel ratio for the engine and new fuel injectors do require a new or updated tune； Reduce emissions: Replacing the fuel injector can improve the combustion process, reduce the production of incompletely burned fuel residues and harmful gases, and reduce the emission level of the car；, Manufacturer: SDCDKLPEPT