just got done with the mods( cut grey wire,removed air box snorkel,filed throttle stop,twinair filter,pmb exhaust tip,power now insert,2.5 turns out on air fuel,no jet changes,13-52 sprockets,did chain,zip ty slies+glides,braking wave rotor rear.) runs like a raped ape! straight from idle thru god knows what rpm,unbelievable power curve,no hesitations no bobbles just straight up power. i used to ride a tricked out it490 which i thought was fast,iwas wrong not only is the wr fast but very controlable w/stock suspension. i would highly reccomend these mods.would like to hear from other wr people.