The PC is the way to go for sure. It is well known the RZR is fat as a pig stock on fuel. Adding the PC and running the base map you can download from their website will if nothing else make a nice improvemnt in gas mileage and a hair on performance. Add mods and it gets even better. Do a custom dyno tune with it for your machine and it gets even better. Talk to Kelly at KMS a she did mine. FYI its the same PC unit that they use on the XP Ranger. There is no doubt the PC is better than all the other fuel controllers out there ... the others are all Dobeck based controllers with whatever manufactures sticker put on them and they offer very limited adjustability ... the PC allows literally unlimited adjustability for now and whatever you do in the future ... it does not matter which exhaust, etc. you get ... use the PC. Did I mention its just plain cool too ... the PC interface is sweet. If anyone wants to run my dyno tuned map let me know but it is always better to get it down for your machine as each differs slightly. I also run one on my Zuki LTR450 and it is amazing. FYI I ha donly a Dragon Fire complete exhaust and UNI filter as mods when doing this dyno. We suspect a stock RZR whould have dyno'd at about 28hp on this dyno ... 6-7hp is a big increase.

Here are my dynos ... unfortunetly did not get a stock run done as dyno was down ... this is base PC RZR map vs. custom KMS tuned map with my exhaust/filter mods only ... you can see from this it really does help just in tuning it neverless the immediate gain you have to assume is there from stock to base map:



Here are torque numbers but its kinda invalid the way a CVT works:



Here is some comparison to other CVT machines that also had mods for the heck of it:



Here is my KMS tuned map screenshot:



And while we are on the dyno subject this is nice to know. Its a CVT clutch profile rzr vs. rhino ... rzr its literally perfect in theory. It has an initial hit, a slight but steady drop off, and then another little hit at the end. Compared it to the Rhino which is its all over the place ... this Rhino even had the PDM clutch and alot of adjustments done to it to get it that good ... its why the Rhinos regardless of what you do to them have a very hard time getting the power to the ground: