1The kit has good corrosion resistance, high hardness and no deformation after long-term use. 2Great replacement for your original gaskets and bolts that are rust and broken. 3Reliable performance, replace OE number for reference is 12617944. 4Especially designed fit for LS1 LS2 LS3 LS6 LS7 LS9 LSX Engines. 5It has good sealing performance, giving you a good driving experience.2 x Gaskets12 x BoltsCondition: 100% New_x000D_Item Type: Exhaust Manifold Gaskets & Bolts_x000D_Material: Steel _x000D_Color: Silver_x000D_OEM: 12617944_x000D_Fitment:_x000D_Fit for LS1 LS2 LS3 LS6 LS7 LS9 LSX Engines_x000D_Fit for Camaro & Firebird 1999-2002_x000D_Fit for Camaro 2010-2013_x000D_Fit for Corvette 1999-2013_x000D_Fit for Pontiac GTO 2004-2006_x000D_Fit for Cadillac CTS-V 2004-2007_x000D_Fit for Pontiac G8 2008-2009_x000D_Fit for Tahoe, Yukon, Escalade 2000-2013_x000D_Fit for Hummer H2 2003-2009_x000D_Fit for Chevrolet Avlanche 2001-2013_x000D_Fit for Silverado & Sierra (4.8L, 5.3L, 6.0L) 1999-2013 1The kit has good corrosion resistance, high hardness and no deformation after long-term use. 2Great replacement for your original gaskets and bolts that are rust and broken. 3Reliable performance, replace OE number for reference is 12617944. 4Especially designed fit for LS1 LS2 LS3 LS6 LS7 LS9 LSX Engines. 5It has good sealing performance, giving you a good driving experience.2 x Gaskets12 x Bolts