This 6* tall 360-degree radial flow air filter features a 3.5" 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. Its inverted top makes for more filter surface area, resulting in longer service intervals. This media is best suited for street use. The sealed XLPE polymer housing features a rugged design, as well as a clear sight window, allowing for hassle-free filter inspection. aFe POWER's patent pending filter-to-housing interface eliminates the use of an overabundance of parts, further simplifying the installation process. The housing utilizes the factory air inlet, using no additional hardware. 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. Stainless-steel clamps are included for strength, and a premium silicone coupling allows for ample flexibility. Takeda intakes are designed with fewer parts for a fast and easy installation. Takeda Momentum Cold Air Intake System w/ Pro DRY S Filter Subaru Outback 20-24 H4-2.4L (t) Subaru Outback 20-24 H4-2.4L (t)