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big 3

  1. YFZ450 & YFZ450R General Talk
    Probably a dumb question but what is the hose for on the FCI intake tube that comes with it?
  2. YFZ450 & YFZ450R General Talk
    So I have researched a bunch on which map and settings to use on my vortex but I see a lot of mixed answers. Fci intake no box, and rossier full exhaust. Only ride the dunes so always around sea level. What is a good map and starting point?
  3. YFZ450 & YFZ450R General Talk
    Anyone know the difference other than looks on the rossier r4 and r5 exhaust systems?
  4. YFZ450 & YFZ450R General Talk
    So I’m going to call KB this week to put in my Big 3 order. Doing the FCI and vortex. Just stuck on which exhaust to get. Looking hard at Yoshi RS2, Rossier and barkers. Input guys?
  5. YFZ450 & YFZ450R General Talk
    Any input on why the dasa exhaust is not as good on the EFI yfz? And why the yoshi and barkers is the most recommended? Thanks!
  6. YFZ450 & YFZ450R General Talk
    Any reviews on the Rossier exhaust for the yfz450r? Think I’m gonna go order one this week
  7. YFZ450 & YFZ450R General Talk
    Any recommendations on who has the best package deal on a Big 3 kit for 2018 yfz450r. Looks like I see a lot of guys going with KBmotorsports. They the best deal around, anyone compete with them? Thanks!
  8. YFZR-X Powertrain
    Hi all, new to the page. Bought a 2018 yfz450r that’s completely stock and I think it’s a giant turd compared to my kfx450r with just a exhaust on it ha. Anyways what would everyone recommend for the big 3 setup? I like the look of the rossier exhaust, and obviously I know everyone thinks the...
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