Snow Performance Stage 3 Boost Cooler Water Injection Kit

1994–2009 Dodge Ram 2500 / 1994–2007 Dodge Ram 3500 5.9L Cummins Diesel

SNO-500

Overview:

The Snow Performance Stage 3 Boost Cooler Water Injection Kit is engineered specifically for Dodge 5.9L Cummins diesel trucks, including Ram 2500 models from 1994 to 2009 and Ram 3500 models from 1994 to 2007. Designed for diesel enthusiasts who demand enhanced engine protection and performance during heavy towing, this advanced water-methanol injection system significantly lowers exhaust gas temperatures (EGTs) and intake air temperatures. By reducing heat stress on critical engine components, it helps extend engine life while improving fuel economy and reducing emissions.

This kit is ideal for owners who frequently tow heavy loads or drive in demanding conditions, offering a reliable solution to maintain safe operating temperatures and boost power output without invasive installation procedures. The integrated controller combines boost pressure and EGT monitoring to deliver precise injection control, ensuring optimal cooling and performance benefits.

Key Features:

The Stage 3 Boost Cooler combines cutting-edge technology with practical design to deliver superior cooling and power gains for Dodge Cummins diesel trucks. Key features include:

• 2D mapped controller that adjusts water-methanol injection based on boost pressure and EGTs for precise temperature management
• Significant EGT reduction of 100–300 degrees, protecting engine components from heat damage
• Integrated boost gauge, EGT monitor, and injection controller in a single compact unit, mounting easily on the steering column or dash
• Non-invasive installation with no drilling or interior modifications required
• 7-gallon tank included for extended range and trip-ready capability
• Red high-temperature nylon tubing and quick-connect fittings for durability and ease of maintenance
• Dual nozzle upgrade and high-flow solenoids for enhanced injection capacity
• Snow Performance Hypersonic water-methanol nozzles and high-flow check valve for reliable atomization and flow control
• Improved fuel economy and reduced emissions through optimized combustion temperatures
• Provides over 65 horsepower gain to assist with heavy towing and hill climbing

Construction & Design:

Built for durability and high performance, the Stage 3 Boost Cooler kit features a sealed 300 PSI UHO pump designed for extreme environments, ensuring consistent and reliable injection under demanding conditions. The system uses red high-temperature nylon tubing that resists heat and wear, paired with quick-connect fittings for secure and leak-free connections. The controller unit is engineered for easy mounting without compromising vehicle aesthetics or requiring additional gauge pods, maintaining a clean and professional installation.

Snow Performance’s Hypersonic nozzles provide superior atomization of the water-methanol mixture, maximizing cooling efficiency and combustion quality. The inclusion of a high-flow check valve prevents backflow and maintains system integrity during operation.

Performance & Sound

By injecting a precise mixture of water and methanol into the intake air, this kit lowers intake temperatures and exhaust gas temperatures, which reduces engine knock and thermal stress. This results in cleaner combustion, improved power output, and enhanced fuel efficiency. Users can expect a noticeable increase of 65+ horsepower, making towing large loads and climbing steep grades easier and less taxing on the engine. The system operates quietly and seamlessly, with no adverse impact on engine sound.

Installation & Fitment:

The Snow Performance Stage 3 Boost Cooler kit is designed for straightforward installation on Dodge Ram 2500 (1994–2009) and Ram 3500 (1994–2007) trucks equipped with the 5.9L Cummins engine. The controller mounts conveniently on the steering column or dash without drilling or interior modifications, preserving the vehicle’s factory appearance. The kit includes all necessary hardware, tubing, and fittings for a complete, trip-ready setup. Installation requires basic mechanical skills and can be completed with common hand tools.

What's Included:

• 300 PSI Extreme Environment Sealed UHO Pump
• 7-Gallon Tank Upgrade
• Adjustable Stage 3 Controller with Harness
• 20' Red High Temperature Nylon Tubing
• EGT Probe Assembly
• Boost Line and Required Hardware
• Quick-Connect Fittings
• Snow Performance Decal
• Dual Nozzle Upgrade
• (2) High Flow Solenoid Upgrades
• Snow Performance Hypersonic Water-Methanol Nozzles
• High Flow Check Valve

Ideal For:

This water-methanol injection kit is perfect for Dodge 5.9L Cummins owners who regularly tow heavy trailers, haul large loads, or operate their trucks under high thermal stress conditions. It is especially beneficial for daily-driven trucks that require reliable temperature management to prevent engine damage and maintain peak performance. Diesel enthusiasts seeking to extend engine longevity while gaining additional horsepower and improved fuel economy will find this kit an essential upgrade.

Emissions Note

For customers requiring CARB Executive Order (E.O.) certification for 50-state legal use, Snow Performance offers a compliant version of this system under part number SNO-50100. Please verify local regulations before purchase to ensure compliance.

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.