1. This product is made of high-quality materials, durable, with oxidation resistance and high temperature resistance, and reliable performance. 2. Improve engine performance and fuel economy, reduce harmful emissions, and prevent premature damage to the catalytic converter. 3. Installation location: on the exhaust pipe of the car engine 4. Material: metal + ceramic chip 5. Number of terminals: 4 6. Terminal type: male plug 7. Thread diameter: 18mm 8. Hexagon side length: 25mm 9. Cable length: 315mm 10. Wiring: white wire is heating wire; gray wire signal wire (-); black wire signal wire (+) 11. OE: 12609457, 12611165, 92457789, 12559849, 12567163, 12567497, 12573168, 12575389, 12583806, 12590594, 12612436, 19209808, 19256731, 2533812, 8125671630, 8125731680, 8192098080, 892567310 12. Applicable models: Suitable for BUICK>RAINIER>2004-2006 Suitable for CHEVROLET>COLORADO>2004-2005 Suitable for CHEVROLET>EXPRESS 1500>2003-2007 Suitable for CHEVROLET>EXPRESS 2500>2003-2007 Suitable for CHEVROLET>EXPRESS 3500>2003-2007 Suitable for CHEVROLET>MALIBU>2004-2008 Suitable for CHEVROLET>SSR>2006 Suitable for CHEVROLET>TRAILBLAZER>2002-2006 Suitable for GMC>CANYON>2004-2005 Suitable for GMC>ENVOY>2002-2006 Suitable for GMC>SAVANA 1500>2003-2007 Suitable for GMC>SAVANA 2500>2003-2007 Suitable for GMC>SAVANA 3500>2003-2007 Suitable for ISUZU>ASCENDER>2003-2006 Suitable for OLDSMOBILE>BRAVADA>2002-2004 Suitable for PONTIAC>G6>2006-2007 Suitable for SAAB>9-7X>2005-2006