Has anyone ever used one these mufflers in there set-up?
I don't know what it would do for performance. It would probably sound nice.
or other top end car mufflers like porshe or something
why not just use an aftermarket muffler?

87 Firebird
All stock...........lol.
after makret would be cheaper considering saab stockers are 500$ and porch are much more
THERE CAN BE ONLY ONE, i have already died once and im still here so lets just leave it on the track
because after markets are after markets the others are unique to the company. it's not like gm where every car gets the same muffler
Lol, its not the mufflers that make the cars sound sexy, its the lack of a GM four cylinder that does it.