Large Three Layer Performance Air Filter: This 360-degree radial flow air filter features a 3-1/4" x 6-1/2" flange and our oil-free Pro DRY S media with three layers of synthetic media for maximum convenience. Its progressive layering provides great filtration efficiency and dust holding capacity, while not requiring the use of oils. This media is best suited for street and light off-road use. Unique Sealed Housing: The one-piece sealed housing, constructed of XLPE (cross-linked polyethylene) polymer, is used to minimize the number of components and ensure the coolest air intake charge available. Dyno-Tuned Intake Tube: This system features a high quality, computer-designed, dyno-tuned intake tube to achieve maximum power gains while maintaining a perfect fit. Its XLPE material is heat soak resistant and extremely durable. Hassle-Free Installation: This is a direct fit intake system that utilizes factory mounting points and requires no cutting or modifications. All necessary clamps and hardware are included. Its revolutionary design uses half the number of parts of a traditional cold air intake system. Magnum FORCE Stage-2Si Cold Air Intake System w/ Pro DRY S Media BMW X5 (F15)/X6 (F16) 14-19 3.0L (t) N55 BMW X5 (F15)/X6 (F16) 14-19 3.0L (t) N55