Exhaust leak - best repair option?
2002 CRV with a couple leaks at the flange connecting the cat converter to exhaust pipe. The connection is badly rusted as one unit so there's no way to undo the bolts. I notice the cat is pitted too and could be leaking a little as well. I realize the only proper fix is likely to replace the cat, but before doing so I am wondering about the following:
1) Can the exhaust pipe be saved? It looks to be in fair shape. When cutting the flange, would the mating surface of the pipe be damaged beyond repair?
2) Would an aftermarket cat between $300-400 suffice?
3) Is there any hope in using muffler or furnace cement to patch the crack while I figure this out?
4) Would a welder be able to patch up the flange as a permanent fix? (as long as the cat keeps working)