does anyone know if the gearing changed on the 05 and up models? just wondering cuz I beat a 04 ltz400 and a 03 kfx400 both by 2 bike lenths. they were both piped and jetted. I also raced a kfx450r and he took me by 2 bike lenths on top end. he was bone stock. only thing I have on the 400s is a amr rev. box and I only have a slip on (hmf)? from what heard the kfx&the ltz is suppose to be faster?