Oh, & I forgot to mention. Baffles on the Ontario Mototechs that I have were originally rivetted in, but I drilled out the rivets, installed riv-nuts & have screws holding the baffles in now. I think there were 1-2 small rust holes on the megaphone area but not large. Pretty thin metal on these units. Mine is 6-2 with pipe in middle, beneath engine, joining the 2 sides together, so that might have been meant for later model bike?