Pontiac 1998-2002 Firebird 5.7L Exhaust Manifold Header Rolls Other Performance AT4Z-6B274-A

AT4Z-6B274-A

1 × Mechanical Vacuum Pump

For BMW 1 Series E88 Convertible 120 i 2008-2013

Unlimited 2008-2010

For Jeep Cherokee Limited 2019-2020

Pontiac 1998-2002 Firebird 5.7L Exhaust Manifold Header Rolls Other Performance AT4Z-6B274-AFeature: 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