Momentum’s unique filter-to-housing interface was built to feature the largest air filter possible. This 8” tall, pre-oiled 360-degree radial flow air filter features a 4” flange and our pre-oiled Pro 10R media with ten layers of progressively finer cotton gauze media for maximum performance and filtration. Its inverted top and large surface area provides much longer life between maintenance intervals, while reinforced metal provides maximum strength to prevent filter collapse. This media is best suited for off-road applications. The smooth one-piece sealed housing, constructed of heat-resistant cross-linked polyethylene (XLPE), features our patent-pending filter-to-housing interface. Its innovative design minimizes the total number of parts, making for an easy installation. A clear sight window allows for hassle-free filter inspection, without having to disassemble your system. The housing connects to the factory air inlet scoop, using no additional hardware, and features an auxiliary air inlet that pulls additional air from the fender well. 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 reinforced, compression-molded, silicone coupler allows for ample flexibility. Momentum HD intakes are designed with fewer parts for a fast and easy installation. To maximize the amount of air going to this air intake system, aFe POWER D.A.S. 50-70103S is available and sold separately. The Dynamic Air Scoop will replace the factory air inlet duct and provide more cold air to the air intake system directly from the front of the vehicle.