Nitrous Express Billet Supercharger Lid

Dodge Challenger / Charger 15-21 6.2L Hellcat

Part #: NX972

Overview

The Nitrous Express Billet Supercharger Lid is a precision-engineered upgrade designed specifically for Hellcat and Demon 6.2L HEMI applications. This billet aluminum lid replaces the factory supercharger lid, offering a seamless and clean installation that enhances both performance and aesthetics. Ideal for enthusiasts seeking to maximize their forced induction setup, this lid improves airflow dynamics and integrates nitrous oxide passages for efficient and balanced nitrous and fuel delivery directly into the supercharger rotors.

Whether you’re looking to boost horsepower or refine the sound of your blower, this supercharger lid delivers tangible benefits while maintaining reliability and durability under high-performance conditions.

Key Features

Engineered for optimal performance and integration, the Nitrous Express Billet Supercharger Lid offers the following key features:

• Direct replacement for factory supercharger lid on 2015–2023 Hellcat, Demon, Challenger, Charger, Durango SRT Hellcat, Trackhawk, and TRX 6.2L HEMI engines
• Constructed from a solid billet aluminum block for superior strength and heat dissipation
• Integrated nitrous oxide and fuel passages for precise distribution within the supercharger rotors
• Improved airflow design that enhances horsepower output without additional modifications
• Amplifies the iconic supercharger whine for a more aggressive and engaging engine sound
• Clean, bolt-on installation requiring no major modifications or fabrication
• Compatible with Nitrous Express nitrous systems for seamless integration
• Durable finish that resists corrosion and wear under extreme conditions

Construction & Design

Crafted from a single piece of high-grade billet aluminum, this supercharger lid exemplifies precision machining and robust engineering. The billet construction ensures exceptional rigidity and thermal conductivity, which helps maintain optimal operating temperatures during high-boost and nitrous-assisted runs. The integrated nitrous passages are expertly routed within the lid to deliver a balanced mixture of nitrous oxide and fuel directly into the supercharger rotors, promoting efficient combustion and power gains.

The design also focuses on improving airflow dynamics by reducing turbulence and restriction inside the supercharger housing. This results in smoother air delivery and a noticeable increase in horsepower, all while enhancing the signature blower sound that enthusiasts appreciate.

Performance & Sound

By optimizing airflow and integrating nitrous delivery directly into the supercharger, this billet lid contributes to measurable horsepower improvements on Hellcat and Demon platforms. Additionally, the lid accentuates the blower’s characteristic whine, providing a more pronounced and aggressive sound that complements the vehicle’s performance-oriented nature. This combination of power and auditory feedback makes it a favored upgrade for performance enthusiasts seeking both function and flair.

Installation & Fitment

The Nitrous Express Billet Supercharger Lid is designed for a straightforward, bolt-on installation that replaces the factory lid without the need for extensive modifications. It fits all 2015 through 2023 Dodge Demon, Challenger, Charger, Durango SRT Hellcat, Jeep Trackhawk, and Ram TRX models equipped with the 6.2L HEMI supercharged engine. Installation can typically be completed with basic hand tools and does not require specialized equipment, making it accessible for professional shops and experienced DIYers alike.

What's Included

• Billet supercharger lid with integrated nitrous passages
• Installation hardware
• Detailed installation instructions

Ideal For

This billet supercharger lid is ideal for performance enthusiasts and racers who want to maximize the potential of their Hellcat or Demon 6.2L HEMI engines. It is especially suited for those running nitrous oxide systems, as the integrated passages ensure efficient and balanced nitrous and fuel delivery. Additionally, anyone looking to enhance supercharger sound and airflow without compromising reliability will benefit from this upgrade.

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.