8-Layer Oiled Cotton Gauze Dry Air Filter: "That's massive!"is all you will hear about this 8-layer oiled cotton gauze air filter that is included with the EVO2200C cold air intake system. This filter is uniquely designed to work with the Injen Twist-Lock System. Using our Twist-Lock technology has allowed our technicians to use the largest filter available for this application for maximum air flow and filtration efficiency. This giant air filter enhances the air volume resulting in increased power gains while making this installation process quick and easy. Quality Hardware: Stainless steel Band Clamps with an inner protective liner to the reinforced automotive grade silicone coupler, every aspect is covered for a perfect and secure fit and easy installation. , , Hassle-Free Installation: Make it easy! The Injen Evolution Air intakes that use our Twist-Lock System have been strategically designed to use fewer parts to provide the end user with one of the quickest and simplest installations available on the market today. Dyno Proven: Clean and simple, NUMBERS talk! Injen has put in the time and diligence to stand behind our performance data. We put in the time to test and prove that we have developed a top-notch kit. After hours of designing and dyno testing, Injen is proud to say that the EVO2200C Evolution Air Intake system puts down numbers of up to 17 additional horsepower and 15 Ft.-lbs. of torque