Check the listing for details. NX958 Nitrous Express Hemi Direct Port Plate Conversion. Color: Black, Condition: New. Listed at 964.33 USD. NX958 Nitrous Express Hemi Direct Port Plate Conversion Description: The Nitrous Express direct port nitrous plates are designed to fit factory modern Hemi Engines. This setup is capable of spraying anywhere from 100-400 horsepower. Direct port plates offer an advantage compared to a single nozzle or a throttle body plate, giving you the best distribution possible by feeding an equal amount of nitrous and fuel to each cylinder. The plates bolt under the intake manifold making installation quick and simple. The plates come in at 5/8" thick so there will be no need to run an aftermarket hood. Made entirely of billet aluminum, anodized in black, and as always proudly made in the USA This system includes: Direct port Hemi nitrous plates with stainless fittingsJetting for 100-400HPStainless braided N2O and fuel lineLonger intake manifold mounting boltsShipping is FREE inside the contiguous United States. If shipping to Alaska, Hawaii or Puerto Rico please message us for a quote for additional shipping costs.