Just got my mac cat back system installed today, had to have everything welded in b/c i dont believe in clamping the exhaust. The previous owner of the truck backed into something and bent the exhaust so far back that it almost closed the pipe. It sounds mean and isnt too loud at idle. I'll try to get some pics on tomorrow.

 

pics and a sound clip!

 

Can't really get a good sound clip yet it still has to resonate a little bit. sounds like a mean mustang.