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.