These 6 Inch tall 360 Degree radial flow air filters feature a 3-1/2 Inch round flange and our pre-oiled Pro 5R media, with five layers of progressively finer cotton gauze media for maximum performance. They provide your engine with the largest amount of high-flowing air, usually resulting in the highest power gains out of all our filter media options. This media is perfect for street and track use. Their inverted bullet-style tops make for more filter surface area, resulting in longer service intervals. The smooth one-piece sealed housings, constructed of heat-resistant XLPE (cross-linked polyethylene) polymer, feature our patent-pending filter-to-housing interface. Two clear sight windows allow for hassle-free filter inspection, without having to disassemble your system. This system features high quality, computer-designed, dyno-tuned intake tubes to achieve maximum power gains while maintaining a perfect fit. Their XLPE material is heat soak resistant and extremely durable. Stainless-steel clamps and ribbed silicone couplings are included for strength and durability. Takeda Momentum intakes are designed with fewer parts for a fast and easy installation. The included barbed fitting and silicone hoses allow the stock connection to transfer over seamlessly.