Nothing wrong with it. Well, it did sound like a baby rattle when I shook it but other than that it was okay. There was no collapse or seperation in the mesh, although I wonder if the rattling sound meant trouble was on the way. I have the Cattman S/S Y-pipe. It has approximately 42,000 miles on it. I've had it on for about 2 or 2 1/2 years now. I'm going to band clamp a piece of exhaust flex tubing in it's place until I get my Warpspeed on. I want to go to a 2.5" exhaust instead of the 2.25" I have right now. I'm not trying to start anything, just thought I'd post my findings.