I just put a brand new 3.3 Acerbis on my 05. Fit perfectly including choke as I had read on here (BIG THANKS). Now I find that I still won't have enough gas for some upcoming rides without packing it. So, I am looking for a used 6.6 Acerbis for a 05 WR450. I don't care if it is blue or clear. Only needs to be in good useable condition and the price is right.