why cant i beat a piped 450 in dirt if i see ppl writing that they have beat them before i have a 700kfx with dual exhaust dmc aliens,k&n filter,snorkel in the airbox,orange blue clutch spring and still cant beat the damn things but i can beat 400s lol any suggestions oh and im not a newbie lol been riding for 3 years! any comments would be appreciated thnkz