This is a very simple upgrade, slightly expensive, but a very important modification for any Fuel Injection quad. When you start making changes like adding an exhaust, modifying the air box for a new filter, and especially changing up the motor you have to change the air/fuel ratio. I am running the DynoJet PCV Powercommander. They also have a PC3, but the 3 has a lot less adjusment available for it. If you want to make sure that you are running the optimum ratio, or you like to play around with your fuel injection to change how it runs, get the PCV. Most of the major exhaust companies will have a map for their specific exhaust that you can download to your programmer.

Dynojet also has a set of maps that you will get on a CD with your programmer, and can also download more from their website. I am currently running a custom map for my modifications. When tuned just right I was able to get 3-4 more HP from my quad. But dont trust just anyone to do this for you. Many people can tune your quad for you to get max HP, but you could be putting your motor in serious danger. I could get more power from my programming, but Im running a safe fuel to air ratio.

You can see I have a bag over the programmer. You DO NOT EVER want to get water in it. Water can ruin your programmer pretty easily. Always cover it somewhow when washing your quad, and if you ride XC races, leave it covered permanetly. Mine stays covered in the bag, and it also gets foam packed around in so it doesnt move around, and the foam soaks up water..