NOW THAT I HAVE YOUR ATT... I PUT THIS GEARING ON THE 03 WHICH IS STOCK AND WENT DOWN TO MY LOCAL SAND DUNES 20 MIN. FROM THE HOUSE AND OH MY GOD THIS THING HAS COME ALIVE FOR THE SAND ANYWAY... I RAN A GUY ON A NEW 450 AND WE STOPPED AND HE LOOKED THE BIKE OVER AND THOUGH I HAD HIDDEN NITROS... HE ALWAYS GOES AROUND THE PREDATORS BUT NOT AS GOOD AS MINE WAS HE SAID.... I SAID CARRY ON.........