Product updated on 2021-03-15, RK Sport - RKS:19017000, 2011-16 Ford F250/350 Superduty Ram Air Hood., Functional on Diesel Trucks Only. The Air Box on the Gas truck is on the opposite side of the engine. Models with the 6.7l diesel may require a new air intake box for clearance to the hood. , 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.