Combo 2017-2019 Chevrolet Silverado Sierra HD Diesel Duramax L5P AFE Scorcher Module 77-44010 Magnum Force 2 Cold Air Intake 54-12902 Dyno tested and produced significant power increases of +80 HP / +145 lbs. x ft. torque Increase turbo boost and fuel pressure to improve vehicle performance, efficiency and throttle response