i have an 03 z400 with an HMF pipe, what size jets should i buy to get more power?

 

there should of been a paper that came with the pipe that tells you where to start with the jetting. dont know what jet size your running now so its hard to say how much bigger you need to go

 

hmmm, thanks for info but im not the one that bought the pipe, i bought the bike used and it didnt come with anything, i didnt even get the tools and pressure gauge that come with the bike cuz the guy lost it at a race and didnt bother to pick up after race, so all i have is title as far as paper works go. I know its got stock jets though