Momentum HD sealed air intake systems are designed using the most up-to-date engineering tools and techniques to provide you with the perfect blend of power and protection. This intake system is superior in every way. From the one-piece sealed housing with a built-in clear sight window to the massive 1,000cfm air filter and premium hardware, we spared no expense to give you the best intake on the market. Unique One-Piece Housing: The smooth one-piece sealed housing with auxiliary air scoop is used to eliminate the use of multiple-piece housings and ensure the coolest air intake charge available. A urethane plug is also included for those cold weather applications where you want to block the auxiliary air scoop. A large, clear sight window is used for a hassle-free filter inspection and an aggressive style. Huge 10-Layer Performance Air Filter: The Momentum HD is designed around a massive 1,000cfm performance 360 degree radial flow air filter with 10-layers of progressive cotton media providing 99.59% cumulative efficiency (independently tested). The unique air filter to housing interface (patent pending) allows for maximum filter size which increases the available air volume while simplifying the installation process. The air filter is wrapped in reinforced metal providing maximum strength to prevent filter collapse. Filter Dimensions: Flange 7"x4-3/4", Base/Top 9"x7" with inverted top, Height 9", Pleat depth 20mm, Number of Pleats 70. Premium Hardware: Premium stainless steel T-bolt clamps and a 2-ply reinforced silicone hump coupling at the turbo is used for strength and durability while also providing the most secure installation available. Momentum HD intakes are designed with fewer parts for a quick and simple installation. Proven Results: After a rigorous design and testing phase, the results are in. The Momentum HD intake system outflowed the factory intake by 27% and produces 18 additional horsepower and 43lbs. x ft. torque.