Aftertreatment System

FIG. 1 is a bottom, front perspective view of the aftertreatment system according to an embodiment of our new design;

FIG. 2 is a top view of the embodiment;

FIG. 3 is a bottom view of the embodiment;

FIG. 4 is a left side view of the embodiment;

FIG. 5 is a right side view of the embodiment;

FIG. 6 is a front view of the embodiment; and,

FIG. 7 is a rear view of the embodiment.

The ornamental design that is claimed is shown in solid lines in the drawings. The broken lines in the drawings depict environmental subject matter only and form no part of the claimed design.