I just happened to sneak on ebay during my lunch break and seen for bid a stage 1 jet kit. Now a bike shop in my city installs stage 2 jet kits for $250 which is quite pricey. I just had a wheelie sprocket (rear) installed for a quicker take off on my 98 F3, but I want to get a jet kit for even more performance power. Does anyone know the difference between stage 1 kit and stage 2 beside the price?

 

i was wondering the same thing about the different jet kits and how much power you actually gain. do you know anything about aftermarket velosity stacks?