if i get a yoshi 440 kit with the full pro series exhaust, and a k&n filter, how much speed will be increased? can that beat a stock------raptor, banshee, ds 650, v force 700? i doubt it will beat some of those but im asking anyway, thanks!

 

The Yoshi kit is a 450, and yes you will be able too beat all of those stock quads easily.

 

it will beat all of those in a drag. but put an eqaul amount of mods on each bike and u will not stand a chance