As of right now i have a 03 wr250f and want to compare the two in power in nimbleness etc... If anyone could let me know what a better bike would be for me. I have kinda bored out on the 250 a lil. LOL. Im somewhat bored of the power im producing and would be as happy as can b if someone could also help me with gettin more power cheap out of my bike. P.S. i already have a exhaust and headers. Also id prefer if it would be relatively easy as of right now because i dont know much about the enigne and all that stuff but i would like to learn. I also have a question about airbox removal. As i said before im new to this so what is it, if i removed it does it give more power, and where is it. Thanks everyone. Plz dont kill me lol just because i put wr 250f vs 450f in a simple 250f forum i put it here cuz i figured its more 250f orentid the message that is. and you guys would be more focused on jst the 250f pretty much you know.