This is SRS,s Dry Nitrous kit for kart and minibike competition use - This kit Includes a 1 lbs. Nitrous bottle with AN4 fitting, SRS 12 volt Nitrous solenoid, Both supply and delivery steel braded lines and AN fittings for solenoid. 212cc Kit comes with 3 sizes of Nitrous jets from mild to WILD!!  Intake manifold for predator 212 or the like included with Nitrous Nozzle installed. Fuse for 12 volts, arming switch and red go-fast button included.  Contact Mike at SRS to build a CUSTOM kit.