Nitrous Express 67540-05 4150 Assassin Plate System 100-500HP with 5lb Bottle

The Nitrous Express 4150 Assassin Plate System is a complete nitrous oxide injection solution designed for 4150-style Holley carburetors. This Pro Power kit delivers a wide power range from 100 to 500 additional horsepower, making it ideal for street/strip applications and serious performance builds.

Key Features:

• Direct bolt-on design for 4150 Holley-pattern carburetors
• Adjustable power range from 100-500 horsepower increase
• Includes 5-pound capacity nitrous bottle with mounting hardware
• Precision-machined aluminum plate ensures even nitrous distribution
• Complete system with all necessary solenoids, lines, and fittings
• Pro Power design optimized for maximum performance and reliability
• Easy installation between carburetor and intake manifold

The Assassin Plate system installs between your carburetor and intake manifold, providing balanced nitrous and fuel distribution across all cylinders. The included 5lb bottle provides multiple passes of nitrous injection, while the adjustable jetting allows you to tune the system to your specific performance goals. This kit includes everything needed for installation except the nitrous oxide itself.