i own a yamaha raptor 660 and a yamaha banshee 350 they are both not stock, and im wondering which is faster stock and which should be faster with the mods ive put into it? But they are both slower than my cr250

03 Banshee: v force 3 reeds, cooling head, boost bottle, full toomy racing exaust, k&N air filters and maxis itp holeshot tires

03 Raptor 660: yoshimura exhaust, stage 2 cam, k&N air filters, and maxis itp holeshot tires.

 

Banshee is a touch slower stock I believe, but only due to the very mellow stock pipes.