Do GM Performance Parts (exhaust, header, and stage 2 kit) perform any better than aftermarket (non-GM) parts? Please leave recommendations for those three parts if there is something better than the GM part.

Thanks,
Nick

 

K get your flame suit on...LOTS of info on here about that dude, just gotta search... Its boils down to a matter of preference... All have their pro's and con's.. concerned about warrenty Stick with GM IMO

 

before you get killed here....

short version...

the GMPP parts are very high quality parts that often perform as well as, if not better than "Aftermarket" products.

the only one that some folks don't like is the extruded manifold, but that is only because it is not a "true" header.

it still offers higher performance and perfect fit.