Compatible with GMC V8 6.0L: Yukon XL1500 2003-2006; Sierra1500/2500 HD /3500 2003-2006; Sierra 1500 HD 2003 2005 2006; Sierra 1500 Classic/1500 HD Classic/2500 HD (VIN K;Cab & chassis)2500 HD Classic/3500 Classic/3500HD(cab& chassis) 2007
Advantages: Supported by high-temperature corrosion-resistant materials, the quality is reliable. Real time monitoring of oxygen content and timely transmission to the engine control unit to improve fuel efficiency.