Exhaust Question

92scauto

Registered User
Do I necessarily need to put headers on in order to have a free flowing exhaust system? How much hp gain can I get from just taking off the cats and replacing my stock muffler with a high flow muffler?

Thanks
 
While headers would be your best option, the stock manifolds can be ported out. I'm unsure of the actual gain at the moment, but there are several people who have done it.

Deleting your cats and adding a high-flow muffler is pretty much a first step for most people, and while the gains can be noticeable, how much exactly depends on the parts you choose.

I'm sure someone with a bit more expertise in this area will chime in... :)
 
I'm about to do an exhaust job on mine, portend manifolds 2.5 pipe w/ no cats, 2.5 in 3" out RES and i dunno what i'm gonna do for mufflers yet, i'm wonderin what kinda gains i should expect? i have a newer model supercharger and removed air silencer, and the engine has 2300 miles on it after i rebuilt it
 
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