Hi. When i bought my WR450 08 I had exactly the same problem. I 've done the free mods first. Then i've removed the AIS. All of a sudden it was like i ride a new bike! I realised from the previous conversation and corrected me if I am wrong, you has not removed the AIS yet. There is a kit which removes it. The bike gets faster. I don't know if this is street legal to your place. But me, i loved it!! Enjoy your new bike.