Nitrous Express 20939BMF-00 Billet LT4 Supercharger Lid Nitrous & Water Methanol System No Bottle

The Nitrous Express 20939BMF-00 is a comprehensive dual-injection performance system that combines nitrous oxide and water/methanol injection into a single CNC-machined billet aluminum supercharger lid designed for GM LT4 supercharged engines. This replacement lid features an improved airflow design that increases up to 25 horsepower by itself, and delivers substantially more power when the injection systems are activated.

Billet Aluminum Supercharger Lid:

• CNC machined from solid billet aluminum and black anodized for corrosion resistance
• Features 1/8 NPT ports machined directly into the plate eliminating gasket leak concerns
• Spray bar-less design with nitrous/fuel passages CNC machined into the lid
• Injects nitrous and fuel from the side of each runner for direct port-like distribution
• Direct replacement for factory GM LT4 supercharger lids

Nitrous Oxide System Components:

• Lightning Series billet aluminum and carbon fiber solenoids
• Industry-exclusive billet aluminum Lightning 500 bottle valve
• Stainless steel braided lines and bottle brackets
• Includes jetting for 100 to 400 wheel horsepower
• Complete wiring, switches, and all installation hardware

Water/Methanol Injection System Components:

• Billet aluminum and carbon fiber Lightning water/methanol solenoids
• High-pressure electric pump for reliable delivery
• Pre-bent stainless steel hardlines and braided soft lines
• Filtered nozzles with nickel-plated fittings
• Composite fluid reservoir
• NX Stage 2 digital progressive controller for precise output management
• Eight side ports for even water/methanol distribution

This kit is sold without a nitrous bottle (part number 20939BMF-00), allowing you to select the appropriate bottle size separately or use an existing bottle. The system is engineered for maximum performance and reliability, with every component designed to work together seamlessly. Installation includes all necessary nuts, bolts, and connectors for a complete installation on GM LT4 supercharged applications.