Nitrous Express · New
Nitrous Express Holley Hi-Ram Dry Direct Port Plate Nitrous System w/ 12lbs Bottle
MPN 20963-12 · Store SKU nex20963-12
Supplier stock checked 11/7/2026, 6:42:03 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
This Holley Hi-Ram Dry Direct Port System takes full advantage of the Holley Hi-Ram manifold. The Plenum Plate bolts right in between the upper and lower intake manifold, making the installation super clean and quick! This Hi-Ram Direct Port System injects nitrous directly above each cylinder from the side of the runner, giving you the most accurate distribution possible without slouching on power! The system comes complete with billet aluminum and carbon fiber Lightning Series Solenoids, stainless steel braided lines, wiring, switches, and every nut, bolt, and connector needed to install the system. If you order your system with a nitrous bottle we include the industry-exclusive billet aluminum Lightning 500 Bottle Valve and stainless bottle brackets. Direct Port, Dry Holley High Ram Plate Nitrous System - 12lb Bottle
Manufacturer fitment & guides
Check 20963-12 against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
