Try posting your question in the F-series forum, click below.
FYI a cold air intake just means the air is being taken from the outside of the engine bay rather than from the top of the engine where most of your heat is located. A CAI will usually suck air from below the engine or from a fender where cool air rushes in while driving.
http://www.automotiveforums.com/vbul...play.php?f=172