I have a 2000 yamaha Warior and the mods i have is K & N filter,Team Alba Titanium
Springs,Valves,and a Bored cyclinder to .30,FMF Power core 4 squared. Now will this kill a stock 400 ex???? and a stock Warrior cause my friends say that his warrior will crush it i dont think so

No.

Are you talking top-speed or trail riding? If going in a straight line, you should have them both beat. In the woods, the EX will out-handle you no matter what engine mods you do.

Stock for stock a 400EX has about 7 more HP than a Warrior. Do you think the mods you have can overcome that burden I am not sure they can.

Adam Smith

99 400EX

A LEM 50 will smoke all a ya :)

my frinds have both machines.
The Warrior has FMF pipe, 38 tooth rear sproket, Pro flow filter.
All stock One day old 400ex.
The 400ex smoked the warrior in a mile or so drag.

Samson has a point if i was you guys i would watch out for them LEM 50's they are some mean machines.....j/k........lol :)

I'm going with the ex.

the ex would win in any race more than likely
hey hangman where do you ride?

hey i hate to say this because the ex is a nice machine, but i think there gutless! hell i wooped a 2000ex with my 87 banshee so easy, and i don't have that many mods on the banshee either, but i totaly blew it away. im sure a warrior could beat it to, but maybe my banshee is just that fast :)