Go with a real Bob cat muffler, bypass this poor fitting substitute.
The dimensions on this muffler are way out of whack. We had to cut the mounting nuts off the muffler and re Weld them in the proper positions. Also the muffler inlet and the drain plug were too close together and at the wrong clock positions we had to grind out the mounting plate to make them fit. I would have returned it if not for time constraints.