Mitch wrote in [QUOTE] I've been trying to get the exhaust off my Kaw GT550 but the b*****d 2 hole flanges that clamp the downpipes to the head are seriously seized onto the studs and wont shift. Any ideas?? Have tried levers but the alloy is so soft it just breaks the fins. I thought maybe a hole saw but they don't do them small enough. It'd be nice if I can get them off without totally destroying the exhaust and engine! [/QUOTE] angle grinder?