NX Single Entry Billet Crossbar nitrous plate systems provide the crossbar spray pattern that everyone loves in a package that is legal for racing classes that allow only one nitrous and one fuel jet. With no spray bars to sag, rotate or disrupt airflow, this is truly the Next Generation in cross bar nitrous plate technology. This system includes a 10lb nitrous bottle with the billet aluminum Lightning 500 bottle valve. This valve not only looks great; It is packed with features including two integrated gauge ports, 5/8 siphon tube, a large .500 orifice and an improved flow path with only one 45 degree turn. The Lightning bottle valve looks great, flows great and weighs nearly one full pound less than our old style brass valve. This system is designed for 4500 flange manifolds and includes: This system is designed for 4500 flange manifolds and includes: 15178 (.178") Nitrous and 15301L Fuel Lightning Solenoids, Custom solenoid bracket, High flow braided stainless solenoid to plate lines, nickel plated fittings, wide open throttle switch, 6AN Feedline, Master arming switch, Amp relay and relay harness, Jetting for 250-650HP,