A combination of a fluid flow control device and a plurality of exhaust trim components, the fluid flow control device comprising: a body (44, 244) comprising an inlet port (30, 230), a common port (32, 232), and a discharge port; a supply path extending between the inlet port (30, 230) and the common port (32, 232); an exhaust path extending between the common port (32, 232) and the discharge port; a supply port (100, 300) disposed within the body (44, 244) along the supply path between the inlet port (30, 230) and the common port (32, 232); an exhaust port disposed within the body (44, 244) along the exhaust path between the common port (32, 232) and the discharge port; and a control element (48, 248) disposed within the body (44, 244) and adapted for displacement between a closed position in sealing engagement with the supply port (100, 300) to close the supply path, and an open position spaced from the supply port (100, 300) to open the supply path, wherein an exhaust trim component (76, 276) is removably attached to the body (44, 244) and defining a control opening (97, 297) extending through the exhaust trim component (76, 276) and configured to receive at least a portion of the control element (48, 248) and an exhaust passage (96, 296) disposed along the exhaust path between the common port (32, 232) and the exhaust port, the exhaust passage (96, 296) having a first exhaust fluid flow resistance; characterized in that the exhaust trim component (76, 276) is selected from the plurality of exhaust trim components, each of the plurality of exhaust trim components defining a distinct exhaust passage (96, 296) having a distinct exhaust fluid flow resistance; and the first exhaust fluid flow resistance pre-selected from the plurality of distinct exhaust fluid flow resistances thereby customizing an exhaust capacity of the fluid flow control device for a specific application. a body (44, 244) comprising an inlet port (30, 230), a common port (32, 232), and a discharge port; a supply path extending between the inlet port (30, 230) and the common port (32, 232); an exhaust path extending between the common port (32, 232) and the discharge port; a supply port (100, 300) disposed within the body (44, 244) along the supply path between the inlet port (30, 230) and the common port (32, 232); an exhaust port disposed within the body (44, 244) along the exhaust path between the common port (32, 232) and the discharge port; and a control element (48, 248) disposed within the body (44, 244) and adapted for displacement between a closed position in sealing engagement with the supply port (100, 300) to close the supply path, and an open position spaced from the supply port (100, 300) to open the supply path, wherein an exhaust trim component (76, 276) is removably attached to the body (44, 244) and defining a control opening (97, 297) extending through the exhaust trim component (76, 276) and configured to receive at least a portion of the control element (48, 248) and an exhaust passage (96, 296) disposed along the exhaust path between the common port (32, 232) and the exhaust port, the exhaust passage (96, 296) having a first exhaust fluid flow resistance; characterized in that the exhaust trim component (76, 276) is selected from the plurality of exhaust trim components, each of the plurality of exhaust trim components defining a distinct exhaust passage (96, 296) having a distinct exhaust fluid flow resistance; and the first exhaust fluid flow resistance pre-selected from the plurality of distinct exhaust fluid flow resistances thereby customizing an exhaust capacity of the fluid flow control device for a specific application.