Product information updated on 2021-06-26 Manufactured by RK Sport - Part Number RKS:44011000, 11-Up Dodge Durango Functional Ram Air Hood., First Ram Air hood on the Market for the Durango. This hood allows fresh cool air to flow directly into any aftermarket intake system. Made In the USA from Hand Laid Fiberglass. , RK Sport Ram Air Hoods are ducted to your factory air cleaner location. Add a cold air intake to make them fully functional. On some models you simply need to install a cold air intake or open up the top of your factory air box.