I race motocross every other weekend in the summer with this little beast
Has a Wiseco high compression piston, two brothers full race exhaust, hot cams stage 2 intake and exhaust.
Last summer (2012) the air filter came off during a race, and well it seized . I tore it all down and scooped about a handful of sand of the top of the piston, was a sad day! Almost have it all rebuilt and ready to roll again though, can't wait till all this snow melts!