ok, so last night while screwin around in the snow, my exhaust got ripped off. What should i do? Just run a muffler and a turndown before the muffler? or spend the money on a full catback?? Also my cat is shot, doesnt rattle anymore cause there is nothing in it. Replace it or run an o2 sim?? Only part that got ripped off was cat back. Right at the muffler/cat joint. The weld on the muffler decided to fail...