I have screaming eagle slip-ons on my 2015 Fatboy. When try to bend the 'ballistic shaped inlet' for a better sound, these are a lot stronger/thicker than earlier versions, I damaged the outer baffle with the screwdriver, probably 3 inches long and 3/4 inch wide, I flattened the perforations. I eventually got a 1/2 hole inch hole in each of the 'ballistic shaped inlet', sounds nice now.
Would I have created any future problems with back pressure etc.?
