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  1. Dyno/Tuning Room
    I have an 09 KFX450R with a slip on Pro Circuit T4. I have stock airbox/intake no lid. Just installed a Power Commander 5 and can't find a map that will work. Found a map with different slip on, runs decent with some hiccups, but does not run 100%. With the newer software, it looks like a PCIII...
  2. Dyno/Tuning Room
    Anyone have or know of a map that is good for drag racing? I have a 09 kfx with a juice box pro, CFM airbox and full two brothers exhaust. I know it take PC maps.
  3. General Discussion
    so i have been looking at everyones threads, and they all seem to have the PCIII, and im over here with the yoshi PIM2. is there really any difference? im running the full yoshi exhaust and it was pretty much a package deal when i got it. i can add maps and do all the wahoo that the PCIII can...
  4. Engine/EFI/Drivetrain
    I have an 08 KFX450R, and I will notice that at mid-high RPMs, it starts cutting out. I have to shut the quad completely off, and then turn it on and then try it again. Sometimes this takes 2-5 resets to get it to run right. I have a Power Commander III (brand new), a new wiring harness, K&N...
  5. Engine/EFI/Drivetrain
    Hello. I was planning on getting the HMF Full exhaust for my next quad I was gonna get. Well I ( obviously) ended up getting the KFX450r. After I got it the dealer told us that it wasnt nescessary to get the full exhaust since the aftermarket headers are about the same size as the stock. That...
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