Nitrous Express Billet Supercharger Lid Nitrous Kit

Fits Most Dodge/Jeep 6.2L (15-21)

Part #: 20972-15

Overview

The Nitrous Express Billet Supercharger Lid Nitrous Kit is a precision-engineered upgrade designed specifically for Dodge Hellcat and Demon models equipped with the 6.2L HEMI engine from 2015 through 2023. This billet supercharger lid replaces the factory lid to provide a direct and efficient pathway for nitrous oxide and water/methanol injection, delivering significant horsepower and torque gains. Ideal for enthusiasts seeking a clean, reliable, and high-performance nitrous system, this kit integrates seamlessly with your vehicle’s existing supercharger setup.

By optimizing airflow and incorporating a spraybar-less nitrous design, this lid ensures an even distribution of the nitrous and fuel mixture directly into the supercharger’s air discharge. This results in a super-cooled air charge that enhances intercooler efficiency and maximizes power output without compromising reliability.

Key Features

This billet supercharger lid offers advanced technology and thoughtful engineering to elevate your Hellcat or Demon’s performance:

• Direct replacement for factory supercharger lid for a straightforward installation
• Spraybar-less nitrous system with CNC-machined passages for precise nitrous and fuel delivery
• Improved airflow design to maximize air volume and reduce restrictions
• Integrated nitrous and water/methanol passages for enhanced cooling and combustion
• Even distribution of nitrous and fuel mixture to each cylinder runner for consistent power gains
• Super-cools the pre-intercooled hot air discharge, increasing intercooler efficiency
• Compatible with 2015–2023 Dodge Hellcat, Demon, Challenger, Charger, Durango SRT, Trackhawk, and TRX models equipped with the 6.2L HEMI engine
• Durable billet aluminum construction for long-lasting performance and heat resistance

Construction & Design

Crafted from high-quality billet aluminum, the Nitrous Express supercharger lid is engineered for strength, durability, and thermal efficiency. The CNC machining process ensures precise nitrous and fuel passage placement, eliminating the need for spraybars and guaranteeing an optimal spray pattern every time. This design not only improves airflow but also enhances the cooling effect of the nitrous injection by delivering it directly into the supercharger’s air discharge stream. The robust construction withstands the demanding conditions of high-performance applications while maintaining a sleek, OEM-like appearance.

Performance & Sound

By injecting nitrous oxide and fuel directly into the supercharger’s discharge air, this system significantly increases horsepower and torque output. The super-cooling effect reduces intake air temperatures, allowing the factory intercoolers to operate more efficiently and deliver denser air to the engine. This results in improved combustion and throttle response. While the primary focus is on power gains, the system maintains the characteristic Hellcat supercharger whine without introducing unwanted noise or harshness.

Installation & Fitment

The Nitrous Express Billet Supercharger Lid is designed for a direct bolt-on installation, replacing the factory supercharger lid without requiring extensive modifications. The kit fits all 2015 through 2023 Dodge Hellcat, Demon, Challenger, Charger, Durango SRT, Trackhawk, and TRX models equipped with the 6.2L HEMI engine. Installation is straightforward for experienced enthusiasts or professional shops familiar with nitrous systems and supercharger components. The spraybar-less design simplifies plumbing and reduces potential leak points, ensuring a clean and reliable setup.

What's Included

• Billet supercharger lid with integrated nitrous and water/methanol passages
• All necessary fittings and hardware for installation
• Detailed installation instructions

Ideal For

This nitrous kit is perfect for Hellcat and Demon owners looking to safely and effectively increase power without compromising drivability or reliability. It suits street performance enthusiasts, drag racers, and track day drivers who demand consistent and measurable horsepower gains. The clean, spraybar-less design also appeals to those who prefer a professional, OEM-quality appearance under the hood.

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.