I ran a wet shot kit on my 05 Rhino back in 08 when I started losing to the rzr's that were runing it. I had real good luck runing between 25 and 35 hp set up. The trick is to do the home work on the jet sizes for the nos and the fuel in relation to the presure of the nos and the fuel. You also really need to know how to read a spark plug as the a/f gauge can read all over the a/f range while your giving it the juice. Eventally i felt i could not go any higher with the NOS shot and I went with the stroker crank for a total of 720cc, I had some luck with that set up but just could'nt keep up with the guy's that were doing engine work and ran NOS on there rzr's, so I just kind of faded out of the big races. So if you want to run NOS it's alot of fun just take it slow at first and learn how it all works, it's definatly not just plug and play.