Nitrous Express 20939BMF-10 Billet LT4 Supercharger Lid Nitrous & Water Methanol System with 10lb Bottle

The Nitrous Express 20939BMF-10 is a complete dual-injection performance system that combines a precision-machined billet aluminum supercharger lid with integrated nitrous oxide and water-methanol injection capabilities. CNC-machined from billet aluminum and finished in black anodized coating, this direct replacement lid for GM LT4 superchargers delivers performance gains even before activating the injection systems.

Performance Benefits:

• Improved airflow design increases up to 25 horsepower by itself, with substantially more power when nitrous and water-methanol systems are activated
• Spray bar-less design with nitrous and fuel passages CNC-machined directly into the lid for direct port-like distribution at each intake port
• Eliminates spray bar complexity while ensuring optimal fuel and nitrous distribution to all cylinders
• Jets included for 100 to 400 wheel horsepower applications

Complete Nitrous System Includes:

• Billet aluminum and carbon fiber Lightning solenoids with lifetime limited warranty
• Industry-exclusive billet aluminum Lightning 500 bottle valve
• 10 lb nitrous oxide bottle with stainless steel mounting brackets
• Stainless steel braided lines and all necessary fittings
• Complete wiring harness and activation switches
• Jetting for 100-400 WHP power levels

Complete Water-Methanol System Includes:

• Billet aluminum and carbon fiber Lightning water-methanol solenoids
• High-pressure electric pump for reliable fluid delivery
• Pre-bent stainless steel hard lines and stainless braided soft lines
• Filtered injection nozzles and nickel-plated fittings
• Composite fluid reservoir with mounting hardware
• NX Stage 2 digital progressive controller for precise water-methanol output management
• Complete wiring, switches, and hardware

Installation & Construction:

• Direct bolt-on replacement for factory GM LT4 supercharger lid—no modifications required
• 1/8 NPT ports machined directly into billet aluminum construction eliminates potential gasket leaks
• Pre-plumbed by expert technicians at Nitrous Express, inspected, leak-checked, and flow-tested before shipping
• Black anodized finish provides corrosion resistance and premium appearance

This comprehensive system is designed for GM LT4 supercharged engines found in 2017+ Chevrolet Camaro ZL1, Corvette Z06, and Cadillac CTS-V applications. The combination of improved airflow, on-demand nitrous injection, and charge-cooling water-methanol injection provides maximum performance potential with complete control.