D.Muffler, Dim A (1): A: 2 3/4" INLET LENGTH, Dim B (2): B: 2 3/16" INLET I., Dim C (3): C: 20" SHELL LENGTH, Dim D (4): D: 3 1/2" OUTLET LENGTH, Dim E (5): E: 2 1/4" OUTLET O., Dim F (6): F: 26" OVERALL LENGTH, Notes: Vertical / Round Body - 4 1/4" Shell Diameter.