Hey Guys, I just got an 06 Wr 450, so Ive been all over this site checking out the mods. I have only ridden it 1 time so far, but could tell right away It needs some fine tuning... So I took everyones addvice and ordered the AIS removal kit, Zip-Ty, pro moto insert and got a 40 leak jet. Now my questions are 1 when I open up my air box is the "H" shaped plastic insert that sits behind the battery the snorkel? and 2 does the Ais kit come with the 168 main jet? I looked at the kit on Yamaha's website and it only shows the 48 pilot and the needle. Would appreciate any help.