Evolution Series Air Induction System Incl. Enclosed AirBox w/Plenum And Tube/Filter/w/Built-In Filter Monitor/Hardware/Instruction Gains +19.0 HP/Torque Gains +52.0 ft. lbs. Product Features Fully Enclosed Rotational Molded Induction System Comes w/Built-In Filter Monitor For Easy Cleaning 100% CAD Designed For An Easy Install Dyno Tuned For Max Power And No Check Engine Lights Automotive Grade Couplers and Hoses Stainless Steel Hardware/Clamps And Screws Increased HP Up To 19 Increased Torque Up To 52 ft./lbs.