hello i am new here to this site. I have recently bought a 09 KLX 250S it already has a HMF slip on and a stage 2 jet kit. I have a new air filter order and the air box snorkel for the 220 kdx. my questions are will a fmf powerbomb header work with my hmf or will I have to get a fmf muffler. and the crank vent mod I am pretty sure I know how to do it but if someone had some pics they could share with me or something it would be great.

thanks

 

I would skip the Header and Crank vent mod and just go ride.

 

^ what he said ^

Welcome to KF.

 

Save up all your money that you would spend on expensive headers and other gimmicks that give no real bang for your buck and get a big bore when you ready. For now, shut up and ride, ride, ride!!! Enjoy and welcome.

 

+1 to what Graham said

The only real upgrade you need is a big bore kit.
Everything else is negligible in comparrison.

 

I am riding it everyday and i dont know if i am gonna do anything else to it i was just wondering the answers to my questions

 

If you ride in the dirt & want to go fast, do suspension first. Front forks revalve/spring, rear re-spring if required.

 

Goobie, I'll give you some answers.

If your slip-on fits directly into the stock header with the stock seal in place it most likely will not work with a Powerbomb as the "nipple" on the slip-on will be far smaller in O.D. than the I.D. of the Powerbomb that it would have to slide into. I have verified this with the Megabomb and I think it also applies to the Powerbomb.


The vent mod is not worth the effort IMHO.

I would advise you to leave the airbox lid off and jet accordingly.