Unique one-piece high quality housing w/ auxiliary scoop: the smooth one-piece high quality 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 large, Clear sight window is used for a hassle-free filter inspection and an aggressive style. A urethane plug is also included if you wish to block off the auxiliary air inlet. (US PAT 9440175) for filter-to-housing interface. High quality tube: this system uses a high quality, dyno-tuned intake tube to achieve maximum power gains while maintaining a perfect fit. Huge 10-Layer performance air filter: the Momentum HD intake 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. Premium hardware: premium clamps and a silicone elbow coupling are used for strength and flexibility while also providing the most secure installation available. Momentum intakes are designed with fewer parts for a quick and simple installation. Also available and sold separately is a dynamic air scoop (p/N 54-73006-s) to direct more cold air for the front of the truck into the intake housing. Note: this intake is not currently CARB exempt and is not available for sale in California or for use on any vehicle registered with the California department of motor vehicle