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Gibson Superflow Mufflers

4.48 out of 5 stars 27 Customer Reviews

Gibson Superflow mufflers exceed the performance advantages provided by most other mufflers on the market. With their straight-through design, they're quieter in the cab, while still delivering that "big block" sound at the tailpipe. These exhausts are cost-effective, reliable, and provide more useable pulling power and torque. Superflow mufflers are available in steel and stainless steel—in a variety of shapes, and inlet/outlet diameters and quantities for universal and vehicle-specific applications.

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Gibson Superflow 304 Stainless Steel 2 Inch Muffler 55140S

Gibson Superflow 304 Stainless Steel 2 Inch Muffler 55140S

Muffler, Superflow, Oval, Stainless, Single 2.0 in. Offset Inlet, Single 2.0 in. Center Outlet, 19 in. Length

Part Number: GIB-55140S

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

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