I have a 1997 camaro Z28. Right now it is pretty much all stock that I know of. How much of a horsepower gain would it give me if I added Hooker Super Competition Headers, and a Borla Cat Back Exhaust system? Thanks a lot.

Donny

 

i would say somewhere around 30 horsepower.

 

That's a pretty generous estimate...You may get 15 RWHP from the headers at best and you can expect 5-10 max for your cat back( you never get what they say). I'd say a safer bet would be around 15-20 total.