Check the listing for details. NX944 Nitrous Express Plate Conversion For Hemi Vehicles. Color: Black, Condition: New. Listed at 415.50 USD. NX944 Nitrous Express Plate Conversion For Hemi Vehicles Description: The Nitrous Express Plate for HEMI vehicles upgrade features a billet nitrous plate that fits HEMI throttle bodies, including Challenger, Chrysler 300 Dodge Rams and Chargers with the 5.7L-6.4L Hemi Engines. This plate bolts between the throttle body and intake making installation quick, easy and attractive. This conversion kit includes the nitrous plate, longer throttle body bolts, braided stainless nitrous and fuel lines as well as jetting for 50, 100, 150, 200, 250, 300, 350 and 400 horsepower. The plate is pre-machined with a second set of nitrous and fuel passages so you can easily upgraded to a dual stage system by adding part # NX933D. This system includes: Jetting for 50-400hp Dual stage capable throttle body nitrous plate 24in S.H.O. nitrous line Longer throttle body mounting bolts Rubber o-ring gasket Shipping 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.