Nitrous Express 15141 Pumpless Water Methanol Injection 4500 Carburetor Plate

The Nitrous Express 15141 is a pumpless direct port water methanol injection system designed for 4500 Dominator-flange carbureted applications. Unlike traditional pump-based systems, this kit uses a pressurized reservoir and integrated pressure regulator to deliver the water methanol mixture without the need for an electric pump — simplifying installation and reducing potential failure points.

The direct port design injects the water/methanol mixture individually into each intake runner, ensuring precise and even distribution to every cylinder. This targeted delivery method maximizes charge cooling, reduces intake temperatures, and helps suppress detonation under high-load and high-boost conditions.

Key Features:

• Pumpless design — pressurized reservoir and pressure regulator replace the need for an electric pump
• Direct port injection delivers water/methanol mixture into each individual intake runner
• Superior cylinder-to-cylinder distribution for consistent performance
• Includes braided stainless AN hoses for durability and a clean installation
• Billet distribution blocks for precise flow control
• Filtered nozzles help prevent clogging and protect system components
• Nickel-plated fittings for corrosion resistance and long service life
• Designed for 4500 Dominator carburetor flange applications

The Nitrous Express 15141 is an excellent solution for carbureted performance builds looking to reduce intake charge temperatures, increase power safely, and protect against detonation — all without the complexity of a pump-driven water methanol system.