I have a wet nitrous kit that I used on one of my karts and I took it off after blowing an expensive reed cage,3 rings, a couple of pistons and 2 cylinders. The only scary part was after you depress the button, there's a 3 second delay meaning the kart kept pulling like a freight train after you let off the button. To me that was pretty scary especially going into a turn and the sucker keeps pulling. I evenually learned to use it wisely but it was a costly experiment...now collecting dust!