Okay, now that I have read all 17 pages of this thread after grinding through the muffler body on the first weld, which tool was finally recommended. I used an 8 in long carbide cutter, which did remove some weld but I went through the muffler body. I can't get the dremel tool into the muffler enough to use either the cutter bit first recommended nor the stone bit recommended further into the thread (page 5 or 6 I think). Someone else recommended a carbide pad, but didn't show it or provide a link to see one. I read where some ground a while and then slept on it, I did that too, just haven't started back up yet. What did everyone who ground through do to cover the hole? Leave it, cover it with the new baffle, fill in weld?
Boy this thread went from baffles to tuning to reflector removal to lowers and speaker mods. Glad no one mentioned windshields in here. I still would like to know which bit, which tool. I am going to look at dremel site, but don't think they make longer bits.