There is a compition going in my town of norman, oklahoma. Between two brothers "University Muffler" and "Performance Muffler" of course i used university on my camaro I had, and I was always going back to fix exhaust leaks... And I put headers on it and had to get a new y-pipe built and they shoved my y pipe all the way inside the flowmaster where it was up against a baffle... And later I was thinking "why is this thing running like hell and so quite..." so later I bottemed out (go figure...) going into sonic and broke the weld on they pipe connectes to the muffler. So I thought I would take it to the other exhaust shop (they are more expensive but I thought they might do better work) And he jacked it up. And I look at the pipe that connects the two it was the same size as the other two that connected to the headers, and I asked guy if he would put a 3" pipe on because the other place was supposed to put a 3" on there instead of a 2 1/2". When he broke the welds on the flowmaster we looked and the pipe was shoved all the way in the flowmaster... I had never seen anything that stupid in my life... and the guy said, where did you get this done? And I told him, and he said "oh.. figures that dumbass would do that". After he put everything back together the way it should have been, the sob ran good and was loud has h3ll. so now they got all of the exhaust work on my stang. That goes to show you that you get what you pay for...