You guys and gals that do exhaust at home, are you welding the pipe all around the muffler, or just tacking it? I want to replace the muffler on my car, and the old one is just tacked in place. I'm wondering if thats wrong. Should I tack it, then pull it down and weld all around it? I suspect mine is tacked, as the shop that did it 25 years ago didn't want to mess with all those rusty nuts, and neither do I really .
Thanks for your input.
