Nitrous Express 8 Cyl Dry Direct Port Four Stage 8 Solenoids Nitrous Kit (200-600HP) w/10lb BottleThis four stage NX Dry Direct Port System provides nitrous directly into each cylinder through four 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 eight billet aluminum and