So I'm trying to take care of a exhaust stud that I stupidly snapped the other day. None of my removal methods have worked so far. I don't have an extractor. Tried double nut but there wasn't quite enough space. Dremeled a slot for a flathead, aero kroil soaked, and still won't budge. I know you can weld a nut on, but I don't have the means to do that.