【Advantage】：Compatible with 2002-2007 Chevrolet Tahoe / Silverado 1500 5.3L V8 Compatible with 2002-2006 Chevrolet Suburban 1500 5.3L V8 Compatible with 2005-2006 Chevrolet Avalanche 1500 5.3L V8 Compatible with 2007 Chevrolet Express /Silverado 1500 Classic 1500 5.3L V8 Compatible with 2002-2006 GMC Yukon /Yukon XL 1500 5.3L V8 Compatible with 2002-2007 GMC Sierra 1500 5.3L V8 Compatible with 2007 GMC Savana 1500 5.3L V8 【Injector features】: Fuel injector package with 8, 4 hole, made of metal and plastic, O-ring, so that the injector can extend the sealing in extreme conditions, more accurate adjustment, direct installation, easy installation. 【Injector function】: Replacement fuel injectors can promote smooth engine operation and optimal gas efficiency, to meet the operating conditions of the engine and the demand for fuel. 【Suggestions for regular injector cleaning】: Generally speaking, if the car is in good condition and has good fuel quality, it can be cleaned every 40,000-60,000 kilometers. Even if the injectors are slightly clogged, there is no need to be overly nervous because impurities will be ejected when accelerating in high gears. 【Strict Quality Control】: All of our fuel injectors undergo strict quality control, not just before shipment, but throughout the production process. Multiple quality control checks are performed at every step of production, meeting OEM standards fuel injector fit, form and function, extending the durability of the injectors and ensuring that every part lasts for years.