Snow Performance Water-Methanol Injection System

2015–2020 Dodge Challenger SRT Hellcat, 2018–2020 Dodge Challenger, 2015–2020 Dodge Charger SRT Hellcat, 2018–2020 Jeep Grand Cherokee Trackhawk

SNO-15127H-HCT

Overview:

The Snow Performance Stage 2.5 Water Injection System with Billet Supercharger Lid is engineered to enhance the performance of high-output vehicles by cooling the incoming air charge and increasing the effective octane rating of pump gas. This advanced water-methanol injection system is ideal for owners of Dodge Challenger, Charger SRT Hellcat models, and Jeep Grand Cherokee Trackhawk who seek improved power and torque without compromising engine safety.

By reducing intake air temperatures and allowing for more aggressive ignition timing, this system delivers noticeable gains in horsepower and throttle response. It is especially beneficial for boosted applications and those running nitrous oxide, as it minimizes or eliminates the need for timing retard, ensuring optimal engine performance and reliability.

Key Features:

Designed with cutting-edge technology and premium components, the Snow Performance Stage 2.5 system offers a comprehensive solution for water-methanol injection enthusiasts. Key features include:

• Billet supercharger lid with integrated water-methanol injection nozzle for precise cylinder-to-cylinder distribution
• High-output water-methanol pump capable of consistent delivery under demanding conditions
• 3-quart reservoir tank with easy-to-monitor fluid level
• Filtered nozzles to prevent clogging and ensure reliable operation
• Push-lock tubing for secure and leak-free fluid lines
• Two-dial electronic controller that progressively adjusts injection based on boost or vacuum inputs
• Compatibility with Dominator and 4500 series intake flanges for versatile installation
• Improved throttle response and horsepower gains without the need for excessive timing retard
• Enhanced safety by reducing intake air temperatures and detonation risk

Construction & Design:

The system’s billet supercharger lid is precision-machined from high-quality aluminum to ensure durability and a perfect fit on compatible intake manifolds. The integrated water-methanol nozzle is strategically positioned in the center of the carburetor bores, promoting even distribution of the injection mixture across all cylinders. This design maximizes cooling efficiency and combustion stability.

All components, including the pump, tank, and lines, are engineered for long-lasting performance in high-heat, high-vibration environments typical of boosted engines. The use of filtered nozzles and push-lock fittings further enhances reliability and ease of maintenance.

Performance & Sound

By injecting a water-methanol mixture into the intake air stream, this system significantly lowers intake temperatures, which reduces the likelihood of detonation and allows for more aggressive ignition timing. The result is increased horsepower and torque, smoother throttle response, and improved overall engine efficiency. When paired with nitrous oxide, the system reduces or eliminates the need for timing retard, unlocking additional power potential without compromising engine safety.

Installation & Fitment:

The Snow Performance Stage 2.5 system is designed for a straightforward installation on select Dodge and Jeep models equipped with Dominator or 4500 series intake flanges. The kit includes all necessary hardware and components, allowing for a clean and professional setup. Installation typically requires moderate mechanical skill and basic tools, with no major modifications to the engine or supercharger required.

Fitment includes:

• 2018–2020 Dodge Challenger
• 2015–2020 Dodge Challenger SRT Hellcat (including Redeye and Widebody variants)
• 2015–2020 Dodge Charger SRT Hellcat
• 2018–2020 Jeep Grand Cherokee Trackhawk

What's Included:

• Billet supercharger lid with integrated water-methanol nozzle
• High-output water-methanol pump
• 3-quart reservoir tank
• Filtered nozzles
• Push-lock fluid lines
• Two-dial electronic controller for progressive injection control
• All necessary mounting hardware and fittings
• Comprehensive installation instructions

Ideal For:

This water-methanol injection system is perfect for performance enthusiasts and professional tuners who want to safely increase power output on boosted Dodge and Jeep vehicles. It is especially suited for those running supercharged Hellcats, Trackhawks, or similar high-performance platforms looking to reduce intake temperatures, improve throttle response, and maximize the effectiveness of pump gas or nitrous setups.

Snow Performance specializes in water‑methanol injection systems designed to reduce intake air temps and support higher boost and timing safely. Popular on forced-induction street/strip builds as well as some tow and diesel applications, Snow kits help manage detonation risk and can enable more consistent power when intake temps and load get aggressive.