need help! got an 02 400 ex

[scrapz]

Hey what up guys I got an 02 400 ex and my dad just got a 450 R I was wondering what I can do to keep up to the 450 R in a drag race?

I already got my bike
Fmf powercore 4 full exhaust pipe
Jetted
Bored out ( just a lil bit had too bekuz older bro blew it up like a DUMBSHIT!!)

Anyways do u guys know what I can do 2 up the performance without havin to get into the engine and I really like to ride around drag race and just have fun in dunes so I like it all!
But if I have to get into the enigine what do u guys suggest?

Thanx 4 any advice open to any options!

[bigkahoonaburger]

if you don't already have one of these and you don't want to get into the engine then a high performance rev limiter is what you should get.
my father and my uncle both have EXACTLY matching 400 ex's and over time they put pipes smaller front sprockets k&n air filters jet kits and finally the rev limiter. when my father put his rev limiter on it made more of a difference than any of the other things. the bikes went from so even that it was whoever got the jump that won to, no matter what, my fathers bike would win by 3 bike lengths at least after the rev limiter was installed. so fo course my uncle went and bought one too. they both have the white bros. revlimiter but i think there might be better ones out there.

[grae73]

Sell it and buy a 450R, only way you'll get same performance without spending a fortune...