Dual Stage Billet Crossbar Plate Convesion 4500 Flange 100-500Hp Nitrous Express NX NX618 - USA-NX618 - The new NX Billet Crossbar nitrous plate systems have just raised the bar in nitrous plate technology. The CNC machined design eliminates round spray bars resulting in excellent atomization and cylinder distribution. With no spray bars to sag, rotate or disrupt airflow, this is truly the Next Generation in cross bar nitrous plate technology. This crossbar nitrous conversion includes: Billet aluminum crossbar nitrous plate Stainless fittings Custom solenoid bracket Braided stainless solenoid to plate lines Nitrous/fuel jets for 100, 200, 300, 400, and 500HP. Longer carb studs. Carburetor to plate gaskets If you have an aftermarket engine management system that is capable of adding nitrous enrichment fuel and want this system DRY (no fuel components), please contact us.