You have to reinstall your stock muffler? How's the rest of your system set up? is your b-pipe/rear section bolt up in the same spot as it does on a stock exhaust? also does it use the same flange? Or are you looking to bolt everthing stock from the cat back?
I have a BOSAL tip welded to a BOSAL oe muffler. I had a MX cat back muffler and was at 1st impressed. The drone of both my header and the exhaust proved to be a bit much on long trips, So I put my previous oe replacement muffler back on and kept the MX down pipe on. The MX muffler may be bigger than what you expect and it also hangs low. It's definitely a poor mounting design but it sounds good and doesn't look or sound bad.