so duncan has a fat boy 4 pipe out now. I was just curious to see if duncan's pipes are any good...and also i am looking for scoops for my radiator....i can't find em at duncan or anywhere else.
I like the duncan pipe the best so far and i have rode bikes with stock,hfm,gytr,sparks. I think the duncan has the best power. The only down part about the pipe is that is loud very loud. It looks good too.
A forum community dedicated to Yamaha YFZ owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, maintenance, classifieds, and more!
