I took my '97 to the shop because the exhaust was blowing just before the muffler. He welded one tear and sent me home. I thought it still sounded a little bit loud so checked under the jeep again and can feel it blowing still. i took it back, but he is telling me that the tear is meant to be there to let water out otherwise it will build up and rust the system.
I have never heard of anyone leaving a hole or tear in the exhaust to let water out, but I could be wrong.
I would be very grateful for any help