Quick view Nitrous Express Nitrous Express 6 Cyl SX2 Dual Stage Nozzle Nitrous Kit Jet Pack (50-750HP) - 90096JP Compare $236.99 NX Jets are manufactured on CNC equipment, and are guaranteed to be within .0005 of specified jet size. In recent testing, using the same jet size, NX jets out flowed the competition by 35-percent! That is right 35-percent more flow through the same... Add to Cart Add to Cart