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Well, if you bought the part but didn't install it, it's probably sitting in your garage.
I'm not sure exactly, but I assume that's what is supposed to control the amount of heated air vs. ambient air entering the airbox. Look around the airbox and the intake piping, you should find what you're looking for.
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.