This 5” tall 360-degree radial flow air filter features a 4-1/2" 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. One Piece 2-3/4" Mandrel-Bent Wrinkle-Black Powder-Coated Aluminum Intake Tube directs unrestricted airflow from the massive filter to the throttle body for more horsepower and torque. aFe developed this sturdy 18 gauge steel wrinkle-black powder-coated heat shield to mount onto the factory airbox to provide a hassle-free installation utilizing factory mounting locations. Premium hardware and clamps are used to securely mount the high flow air filter and the intake tube.