This 5-3/4* tall 360-degree radial flow air filter features a 5-1/2" flange and our pre-oiled Pro 5R media with five layers of progressively finer cotton gauze media for maximum performance. It provides your engine with the largest amount of high-flowing air and delivers the highest power gains in most cases. This media is perfect for street and/or track use. Its inverted top makes for more filter surface area, resulting in longer service intervals. aFe POWER developed this heat shield to snap onto the top of the lower half of the factory air box to provide a hassle-free installation utilizing factory mounting locations. This system features a high quality, computer-designed, dyno-tuned intake tube to achieve maximum power gains while maintaining a perfect fit. Its XLPE (cross-linked polyethylene) material is heat soak resistant and extremely durable. The computer designed system utilizes factory mounting locations, minimizing the use of unnecessary hardware, and ensuring a perfect fit every time. This is a direct bolt-on kit that requires no cutting or drilling on factory parts. Stainless-steel clamps are included for strength, and premium silicone couplings allow for ample flexibility This air intake system works perfectly in combination with aFe POWER D.A.S. (Dynamic Air Scoop): 52-10010S(Black), 52-10010SR(Red) and 52-10010SL(Blue). Rapid Induction Cold Air Intake System w/ Pro 5R Filter Ford F-150 21-23 V6-3.5L (tt) Ford F-150 21-23 V6-3.5L (tt)