GTM is proud to offer our Oil Cooler NACA duct for the 370Z. A NACA duct is an aerodynamic device that directs airflow into a duct very efficiently. This enables air to flow into the side mount oil cooler used in our GTM Supercharger Oil Cooler Supplement Kit for additional cooling. Combine the NACA duct with our GTM Vented Fender Liner to maximize the effectiveness of the oil cooler for highly stressed track applications.