Hi guys, I wanted to create a thread to post before and after soundclips of my Firebird exhaust mods.

If you are on the fence about keeping stock manifolds VS. switching over to headers, this might be particularly useful.

This first post is the car in current configuration:
1988 Firebird Formula
305 TBI
stock manifolds
factory cat delete
all other piping is stock, including tailpipes
stainless turbo muffler

The muffler is an "SS 409" transverse single in, dual out muffler by Lou' s Custom exhaust in Chelmsford MA.




I'll be posting a sound clip next week once my new Hedman shorty headers are installed. Stay tuned!