[MARKDTN]

You can buy exhaust parts and pieces at the local auto parts store, Summit, Jegs.... You can clamp or weld-but if you have that much problem on 1 pipe now the other will not be far behind. I would pay up and let a shop replace it. Many things I like to do myself, but exhaust is one I farm out.

And those manual pipe expanding tools? Ever try to use one? Not easy, especially if you are able to source some thicker wall pipe. There is a reason that the muffler shops have a hydraulic expander. For 1 end it would be far easier to buy a pipe with one end pre-expanded and cut it to length.