Nitrous Express 20963-15 Direct Port Dry Holley High Ram Nitrous Plate System with 15lb Bottle

The Nitrous Express 20963-15 Direct Port Dry Holley High Ram Plate Nitrous System delivers professional-grade power enhancement specifically engineered for Holley Hi-Ram intake manifolds. This high-tech nitrous plate bolts between the upper and lower intake manifold sections, providing a clean and efficient installation that maintains the factory appearance while adding substantial performance capability.

Direct Port Distribution Technology:

Unlike traditional spray bar systems, this plate features precisely machined passages that inject nitrous into each cylinder from the side of the runner. This direct port-like distribution eliminates flow-restricting nozzles or spray bars within the runners, ensuring optimal airflow and uniform nitrous delivery to all cylinders. The billet aluminum plate is CNC-machined with internal passages, eliminating concerns about spray bars breaking or spinning under high-performance conditions.

Complete System Includes:

• Billet aluminum Holley Hi-Ram nitrous plate with integrated passages
• 15lb aluminum nitrous bottle with Lightning 500 billet bottle valve
• ProPower Lightning Series solenoids with carbon fiber construction
• Stainless steel braided feed lines and solenoid-to-plate lines
• Stainless steel bottle mounting brackets
• Master arming switch and wide-open throttle (WOT) activation switch
• Complete wiring harness with relay
• Jetting for 50 to 500 horsepower range
• All necessary mounting hardware, connectors, and installation components

Dry System Configuration:

This is a dry nitrous system designed to work with EFI engine management systems capable of adding enrichment fuel through the engine's existing fuel injectors. The system does not supply additional fuel through the nitrous plate, relying instead on your ECU to compensate with extra fuel delivery during nitrous activation. This configuration is ideal for modern fuel-injected engines with programmable engine management.

Single Stage, Dual Stage Ready:

Supplied as a complete single-stage system with adjustable power levels from 50 to 500 horsepower through jet changes. The plate comes pre-machined with provisions for a second stage, allowing easy future upgrades to a dual-stage configuration for even more power potential.

The Nitrous Express Lightning Series solenoids feature an optimized flow path that maintains nitrous in dense liquid form, maximizing power output while minimizing nitrous consumption. The CNC aluminum bodies with carbon fiber tops provide professional appearance and weight savings.