all you would have to do is buy a walker Y pipe and 2 new mufflers or not of your choice. and a bumper cut out.

im on the single muffler deal, it will get changed when i have mods worthy of dual exhaust. stock engine, wont matter much.

then on the other hand, idk if ill like how it sounds, as i like quiet, i heard a gxp stage 3 regal a while back had the factory (dual) slp cat back, and i must say, it sucked, sounded like someone was giving me a raspberry. and he had a IC, rockers with headers and a 3.1 pulley and tuned.

truth is these engines just dont sound good. it will never sound like a V8.

im really interested in seeing/hearing how loud your fiero will be, as you got nothing on there even close to exhaust lol it looks f ing great tho, you got some skills for sure.