Check the listing for details. 20940-00 Nitrous Express Holley High Ram Plenum Plate System - No Bottle. Color: White, Condition: New. Listed at 1634.48 USD. 20940-00 Nitrous Express Holley High Ram Plenum Plate System - Nitrous Bottle Not Included Description: The Holley Hi-Ram Plenum Plate System takes full advantage of the Holley Hi-Ram intake manifold. The Hi-Ram Plenum Plate bolts right in between the upper and lower intake manifold making the install a super clean and quick. Hi-Ram Nitrous Plate Systems inject nitrous and fuel above each cylinder from the side of the runner providing direct port-like distribution without having a flow restricting nozzle or spray bar. The Hi-Ram nitrous plate is made in the USA from billet aluminum with passages machined directly into the plate so there is no need to worry about spray bars breaking or spinning. Systems comes complete with: Billet aluminum and carbon fiber Lightning SolenoidsStainless steel braided linesWiringSwitchesEvery nut, bolt and connector needed to install the system Features of the Holley Hi-Ram Nitrous Plate System: 50-400 WHPMade in the USAMachined out of billet aluminum No spray barsNitrous Bottle Not Included 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.