Nitrous Express Billet Supercharger Lid Nitrous Kit

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

Part #: 20972-10

Overview

The Nitrous Express Billet Supercharger Lid Nitrous Kit is a precision-engineered upgrade designed specifically for Dodge 6.2L HEMI Hellcat and Demon models from 2015 through 2023. This kit replaces the factory supercharger lid with a billet aluminum version that integrates a spraybar-less nitrous system, delivering a clean, efficient installation and significant horsepower gains ranging from 100 to 300 hp with a 10 lb bottle setup.

Ideal for enthusiasts seeking a reliable and effective power boost, this nitrous kit enhances airflow and optimizes nitrous and fuel delivery directly into the supercharger’s air discharge. The result is a cooler, denser air charge that maximizes the factory intercoolers’ efficiency and delivers substantial increases in torque and throttle response.

Key Features

The Nitrous Express Billet Supercharger Lid Nitrous Kit combines advanced engineering with user-friendly design to provide a powerful and consistent nitrous delivery system. Key features include:

• Billet aluminum supercharger lid engineered for Hellcat and Demon applications
• Spraybar-less nitrous system with CNC-machined nitrous and fuel passages for precise injection
• Optimized airflow design to maximize supercharger efficiency and power output
• Injection of nitrous and fuel directly into the supercharger air discharge for even distribution to each cylinder runner
• Pre-intercooler injection that super-cools the air charge, enhancing intercooler performance
• Clean, bolt-on replacement for the factory supercharger lid with no major modifications required
• Supports horsepower gains from 100 to 300 hp using a 10 lb nitrous bottle
• Compatible with multiple Dodge SRT Hellcat platforms including Demon, Challenger, Charger, Durango, Trackhawk, and TRX

Construction & Design

Crafted from high-quality billet aluminum, this supercharger lid offers superior strength and durability compared to the factory plastic lid. The CNC machining process ensures precise nitrous and fuel passage placement, eliminating the need for a traditional spraybar and providing an optimal spray pattern every time. This design not only improves reliability but also enhances the consistency of nitrous delivery, which is critical for safe and effective power gains.

The lid’s airflow profile is carefully engineered to maintain or improve the supercharger’s volumetric efficiency, ensuring that the addition of nitrous does not disrupt the engine’s breathing. The integration of nitrous and water/methanol passages further supports cooler intake temperatures and improved combustion.

Performance & Sound

By injecting nitrous oxide and fuel directly into the supercharger’s air discharge, this system significantly increases horsepower and torque without compromising engine reliability. The super-cooling effect of the nitrous injection enhances intercooler efficiency, allowing the engine to run denser air charges for improved combustion. While the primary focus is on power gains, users may also notice a sharper throttle response and a more aggressive engine note under boost.

Installation & Fitment

The Nitrous Express Billet Supercharger Lid Nitrous Kit is designed for a straightforward, bolt-on installation that replaces the factory supercharger lid on compatible 2015–2023 Dodge 6.2L HEMI Hellcat and Demon models. No major modifications or custom fabrication are required, making it accessible for experienced enthusiasts and professional installers alike. The kit’s integrated nitrous and fuel passages eliminate the need for additional spraybars or complex plumbing, simplifying setup and reducing installation time.

What's Included

• Billet aluminum supercharger lid with integrated nitrous and fuel passages
• Hardware for installation
• Instructions for installation and nitrous system setup

Ideal For

This nitrous kit is perfect for Dodge Hellcat and Demon owners looking to safely and effectively increase horsepower and torque without extensive engine modifications. It suits street performance enthusiasts, drag racers, and anyone seeking a reliable nitrous system that integrates seamlessly with the factory supercharger setup. The spraybar-less design appeals to those who want a clean, efficient installation with consistent power delivery.

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.