I want to know mods that i can get for my 2003 400ex without going internally in the engine. Mods to make it go a lot faster.
I GOT:
*LRD pipe
*jets
*nerfs


i am about to get the cam degreed also what are some more mods

 

some things u can do to make it faster is get new ignition, new airbox, airfilter, sprocket kits more teeth and thats all i can think of there not gonna make a ton fast but alil




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1999 honda 400ex
white bros exhaust
uni airfilter
ac pro peg nerfbars w/heelgaurds
440bigbore kit for christimas
new crank for christmas
and more

 

what would a new ignition do and where can u find them?

 

i have a stage 1 hotcam forsale if your interested. i wouldn't waste money on a rev box unless you go pretty aggressive on the motor mods.

 

how much do you want for the hotcam?

 

what do u mean waste ur money on a rev box a rev box would be great with a pipe n airfilter plus u can get the box for only $59.95 and u can find the ignition at this site Text oh yeah i for got to answer ur qusetion what would it do. it will ad more spark to ur sparkplus liem more sparts whichs ads more hp and better throttle response



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1999 honda 440ex
a few mods
plus more for christmas [img]i/expressions/face-icon-small-happy.gif[/img]

 

$70 shipped for the hotcam. pm me if interested.

well, if you want to buy a rev box and think your going to get more spark go right ahead. i realize with the msd ignition you will, but for $400 you can get a cam and piston that will do much more. i have tried a few rev boxes and only real benefit is added rpm, which is only needed for a more aggressive cam and high flowing pipe. mine currently advances the timing too which makes added throttle response but for power i would look elsewhere.

 

I added a slip on pipe, K&N filter with pre-charger, removed the airbox lid, and re-jetted my 400ex's for about $300.00 apiece and got a seat-of-the-pants difference espeacially in the low and mid range. Excellent retune for the investment.

 

I would definitely get a CDI box,it and the Sparks pipe and uni filter with jetting was the first thing I did on ours and it was a different bike.I went with the Advantage CDI box.JMO

 

try tires better traction means faster acceleration bigger tires better top speed depends on what kind of riding you do i like the maxxis razr 2's