FASS Fuel Air Separation System Titanium-Series 150gph 11-12 Chevy & GMC Duramax 6.6L Diesel - T C11 150G - Removes All Types of Fuel Contaminants Reduces Carbon Monoxide & Carbon Dioxide Increase Horsepower & Torque Increases Injector Life & Dependability Increases Fuel Mileage (Individual Results May Vary)