Thanks i got the collars and washer because i wasnt sure. I put the exhaust on orginally but was in the process of a rebuild. took it to a shop to have the top end rebuild and pistons re ring. but i think they use the old washers. i have a tick that happens when i first start the bike up and goes away because i think the washer expands. You can fill alot of heat coming from the far passanger side exhaust pipe. the rest arent that way. so pretty sure that is where the leak is coming from.