aFe Power Magnum FORCE 54-12119-B Ford F-150 Torque Booster Tube Converts the Stage-1 intake system (P/N: 51/54-12111) into a Stage-2 intake system Replaces the stock intake tract with a 3 1/2" wrinkle-black powder-coated, mandrel-bent aluminum tube Uses a split-tube design with a mitered transition Connects directly to the 3-angle filter adaptor on the Stage-1 system This product is 50-state legal (CARB E.O Number D-550-15)