Manzo USA Pontiac G8 4-2-1 Stainless Steel Exhaust Header

Installed on 2012 caprice ppv 6.0 (oil cooler delete) these headers are a great value for the money the fit was perfect installed these with an ls3 stock cam and springs shockingly the car picked up 88rwhp from the previous tune stock air cleaner and stock cat back exaust

Definitely opened the car up. I do recommend getting the car tuned, or retuned after adding long tube headers. I don't know if it's the 02 extension or the inability to properly read the long tubes but it does make your engine light come on after a few miles.