I have a stealth back txs exhaust and the rfl axelback. I wanted to make the exhaust deeper because with the high flow cat in ithe exhaust seems pretty mellow and not loud enough for me. I was thinking about gutting the cat to make it deeper but I dont know if it will do this or just make it louder, the txs exhaust seems "toney" compared to others. I went with the stealth back because of the visual part of the inspection but if I gut it no one will know plus I heard that the "mechanical' fix should not give me a CEL so I'll pass the OBD II part of the inspection as well! Any insight on this would be greatly appreciated!!