S2 Nitrous Kits use nitrous oxide which is a gas with greater combustibility to increase the performance of a vehicle. These S2 Nitrous Kits inject the gas directly into the piston when the driver chooses. This provides for a burst of power for a limited time frame. S2 Nitrous Kits consist of the tank tubing and all installation parts needed to make this S2 Nitrous Kits work.