Hey guys, Did you notice a difference in removing the AIS? I did the same mod on my WR450 and it made a huge difference. I also done the Air box mods as well, the only problem i had with this was sand. I used to ride 3-400km in the deserts of oman and if i had a technical laydown the air box could and would get a lot of sand in it. This same problem also caused a mate of mine to end up having his WR engine rebuilt. I would like to get some more grunt out of the TEN and will be doing the Filter box mods and change the filter as i dont have too much of a sand issue now being back in blighty, As for the AIS how will it affect the bike when it come to emissions testing later ?