Chevy 1999-2006 1-3/4" GMC Sierra 4.8 5.3 6.0 V8 Exhaust Manifold Header MAN 12137594938 12 13 7 594

12137594938 12 13 7 594 938

4L L4 - Gas 2006

Valve Body Module Connector OE Number: 6L2Z-7G276-AA

2221020130

Chevy 1999-2006 1-3/4" GMC Sierra 4.8 5.3 6.0 V8 Exhaust Manifold Header MAN 12137594938 12 13 7 594Feature: 1. Getting more air into your engine and more exhaust out is the key to a performance motor. That's where exhaust headers is significant as the first revenue of an exhaust system. Exhaust performance headers manipulate the air flow with the performance robbing exhaust manifold that came with your car. 2. Headers provide each cylinder with its own mini exhaust pipe, which means exhaust headers prevent interference among cylinders; thus, the