Nitrous Express 8 Cyl Dry Direct Port Dual Stage 4 Solenoids Nitrous Kit (200-600HP) w/15lb BottleThis dual stage NX Dry Direct Port System provides nitrous directly into each cylinder through two sets of high flow NX Dry Nozzles. This system is designed to be used with an engine management system that can add nitrous enrichment through the engine's fuel system. A jet card with lbs hr flow data for each horsepower setting is provided to aid in tuning your engine management systems nitrous enrichment settings. Includes four billet aluminum and