I have an 01 wr426. Mods consist of: throttle stop removed; grey wire mod; k&n air filter with air box lid removed; quick shot; power now valve; full big gun exhaust. Like the rest of us, im always looking for more. I am going to rebuild the top end with a weisco piston this winter and port it. what else is there to do? Ive heard of people putting yz cams in, but i like the way the power band is now. Do the yz cams differ from hot cams? What would you guys recomend? Thanks guys!