alright i got an 05 660 all stock had it for awhile just done simple stuff to it... nerf bars n such... lookin to start makin performance upgrades n gonna start with exhaust i think... i got a couple buddies i ride with that have 660's also once has white bro's exhaust n the other has fmf i think... kinda want somethin different so was wonder if anyone could give me some ideas or advice....
thanks
thanks