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Nitrous Express Holley Hi-Ram Plenum Plate Systems take 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 super clean and quick. These 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 from billet aluminum with passages machined directly into the plate so there is no need to worry about spray bars breaking or spinning. The systems come complete with billet aluminum and carbon fiber Lightning solenoids, stainless steel braided lines, wiring, switches and every nut, bolt and connector needed to install the system. The systems ordered with a nitrous bottle include a billet aluminum Lightning 500 bottle valve and the stainless bottle brackets.
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$1,624.48
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$1,872.94
NOS LS Hi-Ram intake dry nitrous systems include everything needed for optimum nitrous distribution throughout LS-based engines. Their dry single-stage plate system sandwiches between the bottom base and the top plate on Holley Hi-Ram intake manifolds. Nitrous is then evenly sprayed directly into each cylinder runner. The intake plate is made from 6061 T-6 billet aluminum, and available in a black or clear anodized finish with a laser-etched NOS logo. The included jetting is for up for 250 hp, but the entire system is capable of supporting 1000+ hp. Systems are available with a 10 lb. or15 lb. aluminum, or 12 lb. carbon fiber nitrous bottle.
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$1,999.95
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