Ive been waiting for a good thread on this topic.....
I have an agressive dune/trail port with 20cc domes, and 28mm keihins that pulls hard on pump gas, even with the FMF gold series I have on right now. Ive been wanting to switch up pipes, but how much will I gain in the drags or lose on the trails??
My top end seems to rip, i smoked a HRC kitted 450r up top, by at least 4 or 5 bikes.
I also ride a lot of trails, mostly in the U.P which are long and fast.
I cant complain about the FMFs, but want to see if im missing out on significant power gains.
Daj.. you mentioned a 2-5hp gain with shearers or CPI, u think I should just keep the FMFs if they are performing?
I guess you will see this winter on white lake (if we get a winter that is)....
Thanks,,
JD