Where to get pre bent exhaust pipes and any suggestions on how to swage them to fit over mufflers?

Hey Kerndog, That simple expander from Harbor Frieight works fine with a good impact gun and lubing up the inside of the pipe to be expanded. I have gotten away from those slip fits with the horseshoe clamps because I don't like the way it deforms the pipe and makes it difficult to remove. I have been using the sanitary flanges that you weld on from Robert James Sales here locally and they are stainless ! carry on