Ed came and picked up his lawn tractor yesterday. When he cranked it up the first thing he asked was what the heck did I do to the muffler, said it has never been that quiet. In my opinion it was no quieter than a new muffler would have been, truth be told probably not as quiet but he had been running the old tractor for so long with a busted muffler, to him it sounded like the difference between a Dodge diesel pickup with straight pipes and a new Cadilac. As long as he was happy I am satisfied