Essentially the exhaust manifold takes the burned exhaust gases from the engine's cylinders and ejects the gas through the exhaust system and out through the car's tail pipe. Product features ; Narrow Roller Presser Foot for Industrial Single Needle Lockstitch Sewing Machine. Iron Gear Wheel. Iron Gear Wheel. $10.00/ea. $0.00 ▶️ Great for Replacement of Missing or Damaged Gaskets ▶️ 100% Brand New ▶️ Complete Hardware Kit for Installing Aftermarket Header to your Vehicle Auto Dynasty Aluminum Exhaust Manifold Header Gasket Set Compatible with 07-13 Chevy Silverado/GMC Sierra 4.8L/5.3L/6.0L/6.2L ; Returns. 30-day refund... Exhaust Manifold Gasket EXHAUST HEADER GASKET COMPLETE SET FOR 07-13 SILVERADO/SIERRA 4.8/5.3/6.0/6.2 Exhaust Gasket The exhaust manifold gasket seals the surface of the exhaust manifold to the surface of the cylinder head, preventing leaks in the system. DNA Motoring GKTSET-GY99 For 2002 To 2016 Chevy Silverado 4 8l 5 3l 6 0l 6 2l Aluminum Exhaust Manifold Header Gasket Set 03 04 05 06 07 08 09 10 11 12 ▶️ Installation Instruction is NOT Included So replace your gasket and regain back lost performance. Package Included:1 X Header / Exhaust Manifold Gasket SetHardware as ShownThis product is compatible with:07-13 Chevy Silverado 1500 2500HD 3500HD 4.8L 5.3L 6.0L 6.2L07-13 GMC Sierra 1500 2500HD 3500HD 4.8L 5.3L 6.0L 6.2LFits Header Model HDS-CS99+Y-T2, HDS-CS07+Y, HDS-CC98LS1, HDS-T88-CS99+YHDS-NOVA74 Over time, the constant expansion and contraction of the components (caused by constant heating and cooling in the engine), may cause the gasket to leak.