So here is the deal. My buddy has an '05 wr450 and he wants some more power. I told him a high compression piston,13:1, and a new cam should do it. Right now he has the white brothers e2 silencer and i think a powerbomb header. So i spend all my time in the honda forum so forgive my ignorance. Over there we run je pistons and either hot cams, web cams, or ron hamp 187 cams. What will i need brand wise with these products? Will yz motor parts fit the wr? Thanks for the help.