well i am in a pickle. I am supposed to go pick up a 06 wr on friday. I just found a excellent deal on a barely used wr450. HMMM I am fairly sure this is the last year before they did the green sticker, correct? Would i have any loss of performance or anything really for getting a 04? He said it all the the mods done air box. wire... you know the rest. And it is already street legal. since i will used mine for go to work from time to time. THanks for any info.