Nitrous Express 67570-12 4500 Assassin Nitrous Plate System 100-500HP with 12lb Bottle

The Nitrous Express 4500 Assassin Plate System is a complete Pro Power nitrous oxide injection kit designed for carbureted 4150-style Holley flange applications. This comprehensive system is engineered to deliver reliable power gains ranging from 100 to 500 horsepower, making it an ideal choice for street performance and racing applications.

Key Features:

• Pro Power plate design for 4150-style carburetor mounting
• Power range: 100-500 HP with precise jetting options
• Includes DOT-approved 12-pound aluminum nitrous bottle
• Complete system with all necessary installation hardware
• High-flow solenoids for consistent activation
• Aircraft-quality stainless steel braided lines
• Proven Assassin series design for reliable performance

This kit provides everything needed for a professional nitrous installation, including the injection plate, solenoids, activation switches, and all required fittings. The Assassin plate design ensures optimal nitrous and fuel distribution across all intake ports for maximum performance and engine safety. The included 12-pound bottle provides extended run time compared to smaller bottles while maintaining a compact size for easy mounting.