It could probably be patched. The rusted part could be cut out and new piece could be welded into a place.
I you're like me and don't have the ability to weld, I would call around to a few muffler shops and metal fabricating places to get some quotes on what they would charge to do this service.
I you're like me and don't have the ability to weld, I would call around to a few muffler shops and metal fabricating places to get some quotes on what they would charge to do this service.