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The Nitrous Express 4150 Billet Crossbar Pro‑Power plate system replaces round spray bars with a CNC‑machined crossbar that improves atomization and cylinder distribution while avoiding sag or airflow disruption. Designed for 4150 flange manifolds, the kit includes jetting for 50–300 hp, braided stainless solenoid lines, billet y fittings, a custom solenoid bracket, wide‑open throttle switch, relay harness and hardware, and weighs about one pound less than the old brass valve.
Nitrous Express 4150 Billet Crossbar Pro-Power Nitrous Kit (100-500HP) w/o Bottle
