Chillout Systems 4" Carbon Fiber NACA Duct Supra Using a unique

Using a unique

If you are the occasional track-day enthusiast

endurance sessions

Produced under the guidance of Bell’s top engineers

Effortless dry break system

Chillout Systems 4" Carbon Fiber NACA Duct Supra Using a uniqueChillout Systems 4" Carbon Fiber NACA Duct Ultralight weight and wind tunnel tested, the Chillout 4 inch NACA duct provides over 55% more airflow than a standard 3 inch NACA duct. Used in conjunction with 4 inch Neoprene Air Duct Hose and a 4 inch Chillout Carbon Fiber Plenum (both available in the drop downs above), the Chillout Carbon Fiber NACA Duct results in maximum cooling efficiency for your cooling system. NACA ducts bring air into a vehicle