Tornado
VIP MEMBER
- Joined
- Dec 5, 2017
- Messages
- 4,533
When I threaded in an old nut without pipe, the fins went all the way into contact point with head. With pipe and steel washer, nut leaves a small gap between fins and head and the pipe cannot be wiggled by hand. So I believe it's got enough force on flange.If you use the search function here, there seems to be a difference in sealing washers too. The worst thing you could do is bottom out the rose nuts and NOT have sufficient pressure on the flange of the exhaust pipe. Then the pipe will hammer away at the rose nuts and screw up the threads in the head. I've only owned a 750, so if you assemble the new exhaust and something seems amiss, you may need to check further into the differences...