The
Pypes shorties are also very nice, fully polished 304L Stainless. I switched to these from the Ford Racing pieces which are 409L stainless, then ceramic coated. If you scratch them they will rust....
Loud truly will depend more on the muffler you have, but it all comes down to then combo. If you want loud use a Bullet or 1 chamber
Flowmaster and any x-pipe, they will hurt your power if your car is stock but it will be loud.
I cant believe I just answered a "Whats loud thread"