Nitrous Express 66142-15 Dry Single Entry Billet Crossbar Plate System Flange - 100-500HP 4150

The Nitrous Express 66142-15 is a complete dry single entry billet crossbar plate nitrous system designed for carbureted applications with 4150-style flanges. This premium system delivers adjustable power gains from 100 to 500 horsepower at the touch of a button, making it ideal for street/strip vehicles and serious performance enthusiasts.

Key Features:

• Precision-machined billet aluminum crossbar plate fits between carburetor and intake manifold
• Dry system design injects nitrous only at the plate—fuel enrichment handled by carburetor
• Single entry injection point provides consistent nitrous distribution
• Compatible with 4150-style carburetor flanges (Holley 600-850 CFM)
• Adjustable jetting for power levels from 100 to 500 horsepower
• Includes 15-pound capacity nitrous bottle with mounting hardware
• Complete system with solenoids, lines, fittings, and electrical components
• Engineered and manufactured in the USA by Nitrous Express

This kit includes everything needed for installation: the billet crossbar plate, high-flow nitrous solenoid, stainless steel braided supply lines, electrical wiring harness with activation switch, jet assortment for tuning, and a lightweight composite 15-pound nitrous bottle with mounting brackets. The dry system design makes this an excellent choice for applications where maintaining original fuel system components is preferred.