Had UPR-Xpipe installed by shop, on the 96GT and sounds like a little clicking going on. Not too bad, but noticeable. I went back twice and no leaks found. Is this common with the x-pipe since we have 2 convertors instead of 6?? I have had exhaust leaks before, and this is slightly different. Kinda like a chomp...chomp...chomp repetitive sound???? Let me know...Thanks!