NACA Air Inlet Ducts
NACA ducts (also known as NASA ducts) are the most efficient, lowest-drag way to direct cooling air where it is needed. These ducts are molded from tough, high-impact black or clear plastic. Each duct has a wide flange for riveting or epoxying in place.
The Small duct is designed to accept our 2.5" ID duct hose. The Medium and Large sizes are designed to accept our 3" ID duct hose.
Note: These ducts are designed and built for racing use. They are not built for show cars. You can sand and paint them, but do not expect a "show-quality" finish out of the box.
Recent Top Seller for this product group | |
| Our large NACA inlet ducts were engineered and tested for maximum air flow with minimal drag. They are made from tough, high-impact plastic for easy installation in body panels or windows. |
| Image | Part No. | Description | Price | Stock Status |
|---|---|---|---|---|
 | 3627-Color | Small NACA Duct (1 Outlet), for 2.5" Hose | $33.99* | In Stock |
 | 3628-Color | Medium NACA Duct (1 Outlet), for 3" Hose | $29.99 to $32.99* | In Stock |
 | CO-NP-3 | $175.00 | In Stock | |
 | 3629-Color | Large NACA Duct (2 Outlets), for 3" Hose | $34.99 to $38.99* | In Stock |
 | 3636-03 | In-Line Blower Fan, 135 CFM, 3" Diameter | $59.99 | In Stock |
 | CO-NP-4 | Chillout 4" Carbon Fiber NACA Duct | $155.00 | In Stock |
 | 3636-04 | In-Line Blower Fan, 235 CFM, 4" Diameter | $59.99 | In Stock |
* Quantity Pricing Available
Related Products |
Brake Cooling Inlet Ducts & Hose |