Nitrous Express 67040-10 4150 Assassin Plate Stage 6 Nitrous System 50-300HP 10lb Bottle

The Nitrous Express 4150 Assassin Plate is a high-performance nitrous oxide injection system designed for carbureted engines with 4150-style Holley flanges. This Stage 6 system delivers adjustable power gains from 50 to 300 horsepower, making it ideal for street and strip applications where versatility is key.

Key Features:

• Stage 6 design provides wide power range from 50-300 HP with jetting changes
• Installs between carburetor and intake manifold for clean, hidden appearance
• Precision CNC-machined aluminum construction for durability and proper flow
• Includes 10lb capacity nitrous bottle with mounting hardware
• Compatible with all 4150-style carburetors (Holley, Quick Fuel, etc.)
• Features Nitrous Express's patented Shark nozzle technology for superior atomization
• Includes all necessary jets, lines, fittings, and solenoids for complete installation
• Safe for stock and modified engines when properly tuned and installed

The Assassin plate system offers an excellent balance of power, ease of installation, and concealment. The under-carburetor design keeps the engine bay looking stock while delivering serious performance gains. This complete kit includes everything needed for installation except the activation switch and fuel system upgrades that may be required for higher power levels.