1999-2005 GMC Sierra Stainless Manifold Header Exhaust V8 Engine W/Y-Pipe Mazda Automatic Transmission Parts 1 * Electric Car Window

1 * Electric Car Window Switch

2 * O-Ring #91345-R0A-A01

B5567-CC00E

Multiple Layers Steel (MLS) Head Gasket

Other Part Number:722

1999-2005 GMC Sierra Stainless Manifold Header Exhaust V8 Engine W/Y-Pipe Mazda Automatic Transmission Parts 1 * Electric Car WindowFeature: 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