This massive 18” tall 360-degree radial flow air filter features our pre-oiled black Pro 5R media with five layers of progressively finer cotton gauze media for maximum performance. It provides your engine with the largest amount of high-flowing air and delivers the highest power gains in most cases. This media is perfect for street and/or track use. This air filter is surrounded by expanded metal that provides additional protection, preventing filter collapse and direct impact. 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 and delivers an aggressive Air Intake sound. The housing incorporates both the factory hood air inlet scoop and the grille inlet using no additional hardware. The lightweight tubes are computer-designed to achieve maximum power gains while maintaining a perfect fit. Manufactured from 100% twill weave carbon fiber, they feature zero fiberglass and are clear-coated for the highest quality construction. Premium stainless steel clamps and a flexible silicone coupling are used for strength and durability while also providing the most secure installation available.