Large Ten Layer Performance Air FilterMomentums unique filter - to - housing interface was built to feature the largest air filter possible. This 9 tall, pre - oiled 360 - degree radial flow air filter features a 7 x 4 - 34 oval 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 provide 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.Unique One - Piece HousingThe smooth one - piece sealed housing, constructed of heat - resistant cross - linked polyethylene (XLPE), features our patented filter - to - housing interface. Its innovative design minimizes the total number of parts, making for an easy installation. A large, clear sight window allows for hassle - free filter inspection, without having to disassemble your system. An auxiliary air inlet is available for use to bring in additional air from the engine compartment in cold climates or can be closed with an included plug if desired.Dyno - Tuned Intake TubeThis 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.Premium ComponentsMomentum HD intakes are designed with fewer parts for a fast and easy installation. This is a direct fit intake system that utilizes factory mounting points and requires no cutting or modifications. All necessary T - bolt clamps, couplings, and hardware are included.