Chillout Systems Carbon 4" NACA Air Intake Duct

• 4-inch carbon fiber NACA air intake duct
• Provides 55% more airflow vs. standard 3-inch NACA ducts
• Wind tunnel tested for optimized aerodynamic performance
• Designed to increase airflow with minimal drag penalty
• Gradual expansion profile reduces turbulence and airflow separation
• Ideal for use with 4" neoprene duct hose and 4" carbon plenum
• Ultra lightweight carbon fiber construction
• Maximizes cooling system efficiency in extreme heat conditions

The Chillout Systems Carbon 4" NACA Air Intake Duct is engineered for race vehicles that demand serious airflow without sacrificing aerodynamic efficiency. Wind tunnel tested and ultra lightweight, this 4-inch carbon fiber duct provides over 55% more airflow than standard 3-inch NACA ducts, making it the ideal solution for high-performance cooling applications.

NACA ducts are designed to introduce air into a vehicle with minimal drag increase, preserving aerodynamic balance while increasing intake flow. The carefully shaped inlet begins narrow and gradually expands in a smooth arc, increasing cross-sectional flow area without disturbing the boundary layer. This design reduces static pressure and improves airflow efficiency—acting like a vacuum effect without the drag penalties of a traditional scoop.

When paired with a 4" Neoprene Air Duct Hose and a 4" Carbon Fiber Air Plenum, this duct delivers maximum cooling efficiency to your Quantum cooling system—ideal for endurance racing, high-heat track conditions, and closed-cockpit race cars.

Constructed from lightweight carbon fiber, the duct combines strength, rigidity, and premium appearance with race-proven functionality. For teams and drivers looking to extract every bit of cooling performance, stepping up to 4-inch airflow makes a measurable difference.