Roto-molded Intake Tube; The EVO7012 Evolution Cold Air Intake System uses a custom designed and dyno-tuned intake tube to produce huge power gains while retaining an OE quality fit. , , SuperNano-Web Dry Air Filter; "That's massive!"is all you will hear about this SuperNano-Web Dry air filter that is included with the EVO7012 cold air intake system. Using the largest filter possible for this application has increased the available air volume - resulting in added power while keeping the installation process quick and simple. , , Quality Hardware; From the 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. , , Hassle-Free Installation; Make it easy! By designing this kit in a 3D workspace, you're ensured a quick and easy installation that not only increases the power output of your engine, but also provides a clean and powerful look that others see every time you pop your hood. 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 superior kit for your GM Duramax LML. After hours of designing and dyno testing, Injen is proud to say that the EVO7012 Evolution Air Intake system puts down numbers of up to 30 additional horsepower and 80 Ft.-lbs. of torque.