I was wanting to spice up the top end of my 09 but couldn't remember the part numbers for the GYTR race head. The 2010 shows it on their accessories web site but not for the 09. If I remember correctly the only place to find it was on the four wheeler page of the yamaha web site.(IT was for a yfz450, but I'm not sure). I just want to make sure prior to flopping down $1500 on it. Any insight?, and has anyone used it? I would be going with the high compression piston as well.