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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.

Results 1 - 25 of 46

Muffler, Superflow, Dual 2.50 in. Inlets/3.00 in. Outlet, Stainless Steel, Polished, Each

Part Number: GIB-758250S

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

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Estimated Ship Date: Sep 3, 2025 if ordered today

Muffler, Superflow, Single 3.00 in. Inlet/Single 3.00 in. Outlet, Stainless Steel, Natural, Each

Part Number: GIB-55153S

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Muffler, Superflow, Offset 3.00 in. Inlet/Outlet, Round 24 in. Case, Polished Stainless Steel, Each

Part Number: GIB-421887

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Muffler, Superflow, Oval, Stainless, Dual 3.0 in. Offset Inlet, Dual 3.0 in. Offset Outlet, 18 in. Length

Part Number: GIB-55109S

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Muffler, Superflow, 3.50 in. Inlet/Dual 3.00 in. Outlets, Stainless Steel, Polished, Each

Part Number: GIB-758350S

Not Yet Reviewed

Estimated Ship Date: Aug 29, 2025 if ordered today

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Estimated Ship Date: Aug 29, 2025 if ordered today

Muffler, Superflow, Oval, Stainless, Natural, Dual 2.25 in. Offset Inlet/Outlet, 24 in. Length, Each

Part Number: GIB-55105S

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Muffler, Superflow, Dual 2.50 in. Inlets/Dual 2.50 in. Outlets, Stainless Steel, Each

Part Number: GIB-55106S

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Muffler, Superflow, Single 2.50 in. Inlet/Single 2.50 in. Outlet, Stainless Steel, Natural, Each

Part Number: GIB-55122S

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Sep 3, 2025 if ordered today

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Estimated Ship Date: Sep 3, 2025 if ordered today

Muffler, Superflow, 2.50 in. Inlet/2.50 in. Outlet, Stainless Steel, Polished, Each

Part Number: GIB-788500S

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 29, 2025 if ordered today

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Estimated Ship Date: Aug 29, 2025 if ordered today

Muffler, Superflow, 4.00 in. Inlet/4.00 in. Outlet, Stainless Steel, Polished, Each

Part Number: GIB-788040S

Not Yet Reviewed

Estimated Ship Date: Aug 22, 2025 if ordered today

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Estimated Ship Date: Aug 22, 2025 if ordered today

Muffler, Superflow, Two 3 in. Inlets/Two 4 in. Outlets, 30 in. Length, Stainless Steel, Polished, Each

Part Number: GIB-788050S

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Aug 28, 2025 if ordered today

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Estimated Ship Date: Aug 28, 2025 if ordered today

Muffler, Superflow, Oval, Stainless, Single 2.5 in. Offset Inlet, Single 2.5 in. Center Outlet, 19 in. Length

Part Number: GIB-55142S

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Muffler, Superflow, Single 2.50 in. Inlet/Single 2.50 in. Outlet, Stainless Steel, Natural, Each

Part Number: GIB-55162S

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

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Estimated Ship Date: Sep 3, 2025 if ordered today

Muffler, Superflow, Single 2.50 in. Inlet/Single 2.50 in. Outlet, Stainless Steel, Natural, Each

Part Number: GIB-55192S

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 29, 2025 if ordered today

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Estimated Ship Date: Aug 29, 2025 if ordered today

Muffler, Superflow, 3.00 in. Inlet/Dual 2.50 in. Outlets, Stainless Steel, Polished, Each

Part Number: GIB-789800S

Not Yet Reviewed

Estimated Ship Date: Aug 29, 2025 if ordered today

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Estimated Ship Date: Aug 29, 2025 if ordered today

Muffler, Superflow, Round, Stainless Steel, Natural, Single 3.50 in. Center Inlet/Outlet, 24 in. Length, Each

Part Number: GIB-788707S

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Sep 3, 2025 if ordered today

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Estimated Ship Date: Sep 3, 2025 if ordered today

Muffler, Superflow, 3.00 in. Inlet/Dual 2.00 in. Outlets, Stainless Steel, Natural, Each

Part Number: GIB-758219S

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

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Estimated Ship Date: Sep 3, 2025 if ordered today

Muffler, Superflow, Single 3.00 in. Inlet/Single 3.00 in. Outlet, Stainless Steel, Natural, Each

Part Number: GIB-55193S

Not Yet Reviewed

Estimated Ship Date: Aug 27, 2025 if ordered today

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Estimated Ship Date: Aug 27, 2025 if ordered today

Muffler, Superflow, 3.00 in. Inlet/3.00 in. Outlet, Stainless Steel, Polished, Each

Part Number: GIB-420887

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Sep 3, 2025 if ordered today

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Estimated Ship Date: Sep 3, 2025 if ordered today

Muffler, Superflow, 2.50 in. Inlet/3.00 in. Outlet, Stainless Steel, Polished, Each

Part Number: GIB-788702S

Not Yet Reviewed

Estimated Ship Date: Aug 27, 2025 if ordered today

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Estimated Ship Date: Aug 27, 2025 if ordered today

Muffler, Superflow, 2.50 in. Inlet/2.50 in. Outlet, Stainless Steel, Polished, Each

Part Number: GIB-788200S

Not Yet Reviewed

Estimated Ship Date: Aug 29, 2025 if ordered today

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Estimated Ship Date: Aug 29, 2025 if ordered today

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 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Muffler, Superflow, Single 2.50 in. Inlet/Single 2.50 in. Outlet, Stainless Steel, Natural, Each

Part Number: GIB-55152S

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Muffler, Superflow, 3.00 in. Inlet/Dual 2.25 in. Outlets, Stainless Steel, Polished, Each

Part Number: GIB-758300S

Not Yet Reviewed

Estimated Ship Date: Aug 29, 2025 if ordered today

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Estimated Ship Date: Aug 29, 2025 if ordered today

Muffler, Superflow, 2 1/2 in. Inlet/Dual 1 3/4 in. Outlets, Stainless Steel, Polished, Each

Part Number: GIB-758216S

Not Yet Reviewed

Estimated Ship Date: Aug 29, 2025 if ordered today

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Estimated Ship Date: Aug 29, 2025 if ordered today

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