Nitrous Express 63571-15 Covert Crossbar Plate System with Bottle - 4500 100-500HP 15lb

The Nitrous Express 4500 Covert Crossbar Plate System is a complete nitrous oxide injection solution designed for carbureted 4150-style square bore intake manifolds. This professional-grade plate system is engineered to deliver 100-500 horsepower gains while maintaining a completely hidden installation beneath your carburetor.

Key Features:

• Covert crossbar plate design mounts between carburetor and intake manifold for invisible nitrous installation
• Adjustable power range from 100 to 500 horsepower with jet changes
• Includes 15-pound capacity nitrous bottle with mounting hardware
• Precision-machined aluminum plate ensures even nitrous and fuel distribution
• Pro Power solenoid system with high-flow design for consistent activation
• Complete system includes all necessary jets, lines, fittings, and electrical components
• Compatible with 4150-style Holley and similar square bore carburetors
• Engineered for reliability in high-performance street and race applications

This complete kit provides everything needed for installation except the carburetor studs. The crossbar plate system offers excellent nitrous distribution while keeping the installation completely concealed under the air cleaner. Ideal for racers and performance enthusiasts who want maximum power gains with a factory-appearing engine bay.