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Nitrous Express Holley Hi‑Ram dry direct port system plenum plate for Holley Hi‑Ram manifolds. This direct‑port kit locates nitrous injection above each cylinder from the side of the runner for accurate distribution and a clean installation, with the plenum plate bolting between the upper and lower intake sections. Systems include Lightning Series solenoids, braided lines, wiring, switches and hardware; bottles and valve options are available separately.
Nitrous Express Holley Hi-Ram Dry Direct Port Plate Nitrous System w/o Bottle
