I have an 02 Vrod - it has been converted to a road rod bagger, the exhaust was changed with Samson Long Cannons. Right where the header pipe connects to the mufflers, it is leaking exhaust, I have tried moving the clamp - no luck, and I bought a new clamp, no luck.(one frome the harley dealer for 40.00 - no luck.. Any suggestions? the pipes do not appear oblong, or anything.. thanks!