Nitrous Express Direct Port Plate System

2003–2022 Dodge Ram 1500 / Ram 2500 / Ram 3500 / Durango / Magnum / Charger / Challenger / Jeep Grand Cherokee / Grand Cherokee L / Wrangler / Grand Wagoneer / Wagoneer

20958-12

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 between 100 and 400 additional horsepower, this nitrous setup offers superior power gains with precise fuel and nitrous distribution. Ideal for enthusiasts seeking a reliable, high-performance nitrous solution, the direct port plates ensure each cylinder receives an equal amount of nitrous oxide and fuel for optimal combustion and power output.

This system is perfect for those who want to enhance their vehicle’s performance without extensive modifications. The plates install quickly under the intake manifold, maintaining factory hood clearance thanks to their slim 5/8" thickness. Whether you drive a Dodge Ram, Charger, Challenger, Durango, or Jeep Grand Cherokee, this kit provides a clean, efficient, and powerful nitrous upgrade.

Key Features:

Designed for maximum performance and ease of use, the Nitrous Express Direct Port Plate System includes:

• Direct port nitrous plates tailored for 5.7L, 6.1L, and 6.4L Hemi engines
• Capability to spray 100 to 400 horsepower, adjustable via included jetting
• Equal nitrous and fuel distribution to each cylinder for consistent power delivery
• 5/8" thick plates that fit under the intake manifold without requiring aftermarket hood modifications
• Billet aluminum construction with black anodized finish for durability and corrosion resistance
• TPS Auto Learn switch that activates nitrous only at wide-open throttle and shuts off automatically when the throttle is released
• Includes stainless braided nitrous oxide and fuel lines for enhanced safety and reliability
• Master arming switch, relay, and relay harness for complete system control
• Fuel rail adapter for seamless integration with factory fuel system
• 12 lb nitrous bottle with billet aluminum Lightning 500 bottle valve and stainless steel bottle brackets
• All necessary hardware for a straightforward installation

Construction & Design:

Every component of the Nitrous Express Direct Port Plate System is crafted with precision and quality in mind. The plates themselves are machined from billet aluminum and anodized black to resist corrosion and wear, ensuring long-lasting performance. The 5/8" thickness is engineered to maintain factory hood clearance, eliminating the need for costly aftermarket modifications.

Stainless steel fittings and braided lines provide durability and safety under high-pressure conditions. The system’s design focuses on delivering nitrous and fuel evenly to each cylinder, which improves combustion efficiency and reduces the risk of engine damage. Proudly made in the USA, this kit reflects Nitrous Express’s commitment to quality and performance.

Performance & Sound

By injecting nitrous oxide directly into each cylinder’s intake port, this system significantly boosts horsepower and torque, resulting in faster acceleration and improved overall engine performance. The direct port method ensures a smooth and consistent power curve without the lag or uneven distribution sometimes experienced with throttle body or single nozzle systems. While the system enhances power, it maintains the factory engine sound characteristics, allowing you to enjoy the natural growl of your Hemi-powered vehicle.

Installation & Fitment:

The Nitrous Express Direct Port Plate System is designed for a straightforward installation process. The plates bolt directly under the intake manifold, requiring no permanent modifications or machining. The included hardware and detailed instructions simplify the setup, making it accessible for experienced DIYers and professional installers alike.

This system fits a broad range of Dodge and Jeep vehicles equipped with 5.7L, 6.1L, and 6.4L Hemi engines, including:

• Dodge Ram 1500 (2003–2010), Ram 2500 (2003–2010), Ram 3500 (2003–2009)
• Dodge Durango (2004–2020)
• Dodge Magnum (2005–2008)
• Dodge Charger (2006–2019)
• Dodge Challenger (2008–2019)
• Jeep Grand Cherokee (2005–2022)
• Jeep Grand Cherokee L (2021–2022)
• Jeep Wrangler (2021–2022)
• Jeep Grand Wagoneer (2022)
• Jeep Wagoneer (2022)

What's Included:

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

Ideal For:

This direct port nitrous system is ideal for performance enthusiasts and racers who demand reliable, consistent power gains from their modern Hemi engines. It suits those looking to upgrade their Dodge or Jeep vehicles for street, strip, or off-road use without compromising drivability or requiring extensive engine modifications. Whether you’re enhancing a daily driver or building a dedicated performance machine, this kit delivers a clean, efficient, and powerful nitrous solution.

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.