This aFe POWER Pro 5R is a 7-1/2" tall, pre-oiled, 360-degree radial flow performance air filter with five layers of progressively finer cotton gauze media for maximum performance. It provides 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/or track use. Its inverted top makes for more filter surface area, resulting in more flow and longer service intervals. The included massive air filter is surrounded by an open-element XLPE (cross-linked polyethylene) polymer housing that minimizes warm engine air for maximum performance. Its open design allows for easy viewing of the air filter, yet creates a heat-blocking seal when the vehicle's hood is closed. It features a built-in ram air scoop that captures additional cool air from behind the front grille. This system features a high quality, CAD-designed, dyno-tuned intake tube to achieve maximum power gains while maintaining a perfect fit. Its XLPE material is heat soak resistant, extremely durable, and features a Takeda design inspired by import vehicles. The system is CAD-designed and utilizes factory mounting locations - making for a hassle-free, direct bolt-on installation process that requires no cutting or drilling on OEM parts. Its revolutionary design, featuring our patent pending filter-to-housing interface, uses half the number of parts of a traditional cold air intake system. An included billet aluminum fitting allows OE connections to transfer over seamlessly.