I'm getting a pretty good pop-pop-BANG on decel from 6,000 RPM.

I think I need to get the pipe seated a bit furtehr into the header, I can feel exhaust puffing out of the fitting where the slots for the exhaust clamp are.

Might need to put the airbox lid back on and just remove the snorkle if that doesn't fix it.

Do have a one way valve and little baby K&N on the crank breather hose tucked up high under the seat.



Your right about that HMF pipe, it is pretty dang loud at WOT. Might put the quiet core insert in there for riding in town.