Nitrous Express 15131 Direct Port Water Methanol Injection System 6 Cylinder Stage 3

The Nitrous Express 15131 is a Direct Port Water Methanol Injection System designed specifically for 6-cylinder engines. Unlike throttle body or single-point injection approaches, this direct port system injects the water/methanol mixture directly into each individual intake runner, ensuring precise and even distribution to every cylinder for maximum performance and protection.

Key Features:

• Direct Port Injection: Delivers water/methanol mixture individually to each intake runner for optimal cylinder-to-cylinder distribution
• High-Pressure Electric Pump: Provides consistent, reliable fluid delivery under demanding conditions
• High-Pressure Push Lock Hose: Durable hose construction rated for high-pressure water/methanol service
• Filtered Nozzles: Built-in filtration at each nozzle prevents clogging and ensures consistent spray patterns
• Nickel-Plated Fittings: Corrosion-resistant fittings for long service life with methanol blends
• Composite Reservoir: Lightweight, chemical-resistant reservoir for the water/methanol mixture
• Stage 3 Digital Progressive Controller: Features an LCD display that allows fine tuning across low, mid, and high airflow levels for maximum precision
• LCD Monitor: Displays real-time boost pressure, fuel injector duty cycle, and water/methanol injection percentage

As a Stage 3 system, this kit steps beyond the basic wide-open throttle (Stage 1) and rotary-dial progressive (Stage 2) controllers by offering a fully digital, LCD-equipped progressive controller. This allows precise calibration of water/methanol output at three distinct airflow ranges — low, mid, and high — giving tuners granular control over charge cooling and detonation suppression.

Water/methanol injection effectively lowers intake charge temperatures, reduces the risk of detonation, and can support increased boost pressure or ignition timing advance. The Nitrous Express direct port design ensures each cylinder receives equal treatment, making this system ideal for performance builds where consistency and reliability are critical.