I repaired a cut in the exhaust pipe behind H-pipe by wrapping it with 2 pieces of sheet metal and some lines of DAP clear silicone sealant, then clamped it pretty tight. The sealant pkg said good up to 500 degrees. Think it will hold up for long?
might be ok for a temporary repair but it needs to be done right. I would be concerned with a weak spot not supported structurally even if there is no immediate exhaust leak. It will flex and break again eventually.
Definitely have it done properly. High temp, cold, dirt, vibration and other elements could easily lead to leak. I'll ask my buddy's brother if he tried that muffler cement, I'll come over this weekend to help him install the brake kit from 4Wheelonline onto his truck. I personally wouldn't use it as permanent solution.
Finding my exhaust leak: I saw a youtube from I think Eric the car guy on how to find he leak. Hook up a leaf blower to the tailpipe and crawl under there with a soapy water spray and look for bubbles. Pure genius!
If you have duals, tape a rubber glove over the second pipe,