Nitrous Express Direct Port Plate System

Fits Most Dodge/Jeep 6.4L/6.2L/6.1L/5.7L (03-22)

20958-15

Overview:

The Nitrous Express Direct Port Plate System is engineered specifically for modern Hemi engines found in a wide range of Dodge and Jeep vehicles from 2003 through 2022. Designed to deliver a powerful nitrous oxide injection, this system can safely boost horsepower by 100 to 400, providing a significant performance upgrade for enthusiasts seeking reliable and consistent power gains.

Ideal for owners of Dodge Ram trucks, Durango SUVs, Charger and Challenger muscle cars, as well as Jeep Grand Cherokee and Wrangler models, this kit offers precise fuel and nitrous distribution to each cylinder. Its direct port design ensures optimal atomization and combustion efficiency, making it a preferred choice over single nozzle or throttle body plate systems.

Key Features:

This direct port nitrous system combines advanced technology with user-friendly features to maximize performance and ease of use:

• Direct port plates designed to fit factory intake manifolds on 5.7L, 6.1L, and 6.4L Hemi engines
• Capable of delivering 100 to 400 horsepower gains with included jetting options
• Equal nitrous and fuel distribution to each cylinder for consistent combustion
• 5/8" thick plates eliminate the need for aftermarket hood modifications
• Billet aluminum construction with black anodized finish for durability and corrosion resistance
• Includes TPS auto-learn switch to activate nitrous only at wide-open throttle and deactivate on throttle lift
• Comes with stainless braided nitrous oxide and fuel lines for safety and reliability
• Master arming switch, relay, and relay harness included for complete system control
• 15 lb nitrous bottle with billet aluminum Lightning 500 valve and stainless steel mounting brackets
• All necessary hardware for a straightforward installation

Construction & Design:

The system’s direct port plates are precision-machined from billet aluminum and anodized in black to provide a robust, long-lasting finish resistant to heat and corrosion. The 5/8" thickness of the plates ensures structural integrity while maintaining compatibility with factory hood clearances, eliminating the need for costly aftermarket modifications.

Stainless steel fittings and braided lines enhance durability and safety under high-pressure nitrous delivery. The included Lightning 500 bottle valve is crafted from billet aluminum, offering smooth operation and reliable sealing. Every component is proudly manufactured in the USA, reflecting a commitment to quality and performance.

Performance & Sound

By injecting nitrous oxide directly into each cylinder’s intake port along with the appropriate fuel, this system maximizes combustion efficiency and power output. The result is a noticeable increase in horsepower without compromising engine reliability. The direct port design also ensures smooth power delivery and throttle response, maintaining the natural sound and character of your Hemi engine.

Installation & Fitment:

The Nitrous Express Direct Port Plate System is designed for a bolt-on installation beneath the intake manifold, making the setup quick and straightforward for experienced installers. The kit fits a broad range of Dodge and Jeep models equipped with 5.7L, 6.1L, and 6.4L Hemi engines, including popular muscle cars, trucks, and SUVs from 2003 to 2022.

No major modifications are required, and the included hardware and detailed instructions simplify the process. The system’s design maintains factory hood clearance, so no aftermarket hood is necessary.

What's Included:

• Direct port nitrous plates with stainless steel fittings
• TPS auto-learn switch for wide-open throttle activation
• Jetting for 100 to 400 horsepower increments
• Stainless braided nitrous oxide and fuel lines
• Master arming switch
• Relay and relay harness
• Fuel rail adapter
• 15 lb nitrous bottle with billet aluminum Lightning 500 valve
• Stainless steel bottle mounting brackets
• All necessary installation hardware

Ideal For:

This system is perfect for performance enthusiasts and racers who want a reliable, efficient nitrous setup tailored for modern Hemi-powered Dodge and Jeep vehicles. Whether upgrading a muscle car like the Challenger or Charger, enhancing the towing and hauling power of a Ram truck, or boosting off-road capability in a Jeep Grand Cherokee or Wrangler, this kit delivers consistent, controllable power gains with minimal installation complexity.

Nitrous Express (NX) manufactures high-performance nitrous oxide systems and components designed to add significant horsepower on-demand for street/strip and racing applications. With complete plate and direct-port style systems plus supporting solenoids and hardware, NX is built for tuners and racers who want controlled power gains—and the company also owns Snow Performance for water-methanol solutions.