The Momentum HD sealed air intake system is designed using the most up-to-date engineering tools and techniques to provide you with the perfect blend of power and protection.Momentum HD intakes are designed with fewer parts for a quick and simple installation.The one-piece sealed housing with a built in sight window to the huge 1,000cfm air filter allows you to visually inspect the status of your filter media. The auxiliary air scoop is used to eliminate the use of multiple-piece housings like other intakes 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. The unique air filter to housing interface (patent pending) allows for maximum filter size which increases the available air volume. This allows the Momentum Intakes use a 10-Layer Pro 10R Performance Air Filter that flows up to 1,000cfm for maximum performance. The 360 degree Pro 10R radial flow air filter with 10-layers of progressive cotton media wrapped in reinforced metal providing maximum strength to prevent filter collapse and producing 99.47% cumulative efficiency while This product ships in approximately 1 days