RE: Tuned Pipe for Y.S. 45 SE
Oldrookie- Yeah I cannot remember the reason for the "F" plug either...sorry. I was hoping Bob27 would answer that--- The 10x8 is definitely the sweet-spot for the YS-45 but it seems you will need 11" on the Bobcat. That is why I suggested the 8.5 pipe not the 7.5cc