Shouldn't even be close, A stock 400ex tops out around 26-27 hp, a stock warrior tops out at around 17-18 hp even with a full pipe and properly jetted the warrior will only pick up about 3 hp for an approx total of 20-21 hp, 6-7 less than a stock 400ex plus the warrior is about 30lbs heavier. My numbers may be a little off but the point still remains 400ex should win easily.

 

well lets just say ur gonna win, the warrior would need serious mods (like i have) to beat 400's..

 

a warrior come stock with 20hp... with a pipe 23-24hp.... so its not really that big of a difference. The 400ex still should win the race hands down

 

400ex everytime, anytime.................anywhere.............