I have a 03 z400 and so far i have a yoshi comp full system, k & n filter, yoshi bumper, x factor nerf bars, and full skid plate. What do you think should be my next mod for more speed

 

cams and CDI box is what I would do next.
then 440 it. then suspension

 

is it a big deal to make it a 440? i know the 440 kit is like 200-300 but how much would labor be

 

ya same hear. how much will it cost to take my bike and 440 it? i am a terrible mechanic also, so i might have to have a friend do it for me.

 

when I had mine done the bike ws still stock except it was piped and jetted and had a big gun cdi box
I spent $2500 for the motor work. ( bored, resealed, cams, carb, ported, polished, gaskets, dyna cdi,piston)
it can get costly

 

i would get a Hot Cam Stage 2 Cam w/ Kibble White Dual Rate Springs and a 11:1 Piston, then a Rev-Box.

 

I agree with the cams, but you can get the valvesprings and base gasket form the DRZe(I think it was the e model) dirtbike. The valvesprings are stiffer and the base gasket is thinner. Stock compression is ~11:1 the base gasket bumps it up to ~12:1. The valve springs are only about $8 each.

This gave me as much or more of a power gain over the pipe alone as the pipe did over the stock Z. A lot more mid range and top end power, Revs more freely.

 

You could go faster on your machine as is if you could only handle it.
SHOCKS DUDE!!! [img]i/expressions/face-icon-small-smile.gif[/img]

 

Suspension, suspension, suspension. The stock motor already out performes the suspension. If money is a concern then get a steering stabilizer, most noticible difference for the money.

 

wut about the yoshi 450 kit. how does that perform?