AUS Injection MP-10722 Remanufactured Fuel Injector - 2005-2009 Chevrolet/GMC With 4.3L V6 Engine Remanufactured In the USA All units are 100% factory tested before packaging Clean injectors provide better gas milage and increase overall performance All injectors are lubricated prior to packaging ensuring a trouble free installation All injectors are backed by a 12 month 12,000 mile warranty