Hey, I bought a KFR 450 last spring for son to start racing. He did pretty good last year and now I want to pep it up a little. I have been reading up on them and it seems like the place to start is the air intake, stock intake is restrictive. Any suggestion on what to buy? Thanks ATV Tommy.

 

Fuel Customs is supposedly one of the leaders with the KFX.

 

FCI or Fuel customes intake is the one to buy for the KFX 450 Its what I run on mine, you will also want a pipe and fuel controller it all makes a world of diffrence.