We claim the ornamental design for an exhaust gas aftertreatment system, as shown and described.
FIG. 1 is a front, top, left side perspective view of the exhaust gas aftertreatment system showing our new design;
FIG. 2 is a rear, top, right side perspective view of the exhaust gas aftertreatment system;
FIG. 3 is a front view of the exhaust gas aftertreatment system;
FIG. 4 is a rear view of the exhaust gas aftertreatment system;
FIG. 5 is a left side view of the exhaust gas aftertreatment system;
FIG. 6 is a right side view of the exhaust gas aftertreatment system;
FIG. 7 is a top view of the exhaust gas aftertreatment system; and,
FIG. 8 is a bottom view of the exhaust gas aftertreatment system.
The ornamental design which is claimed is shown in solid lines in the drawings. The broken lines depict portions of the exhaust gas aftertreatment system that form no part of the claimed design.