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.

Showing In Stock Items. Show All 46 Items.

Results 1 - 18 of 18

Gibson Superflow 304 Stainless Steel 3 Inch Muffler 421887

Gibson Superflow 304 Stainless Steel 3 Inch Muffler 421887

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 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

Gibson Superflow 304 Stainless Steel 3 Inch Muffler 55109S

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 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

Gibson Superflow 304 Stainless Steel 2.5 Inch Muffler 788500S

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: Dec 29, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 29, 2025 if ordered today

Gibson Superflow 304 Stainless Steel 2.25 Inch Muffler 55105S

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 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

Gibson Superflow 304 Stainless Steel 2.5 Inch Muffler 55192S

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: Dec 19, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 19, 2025 if ordered today

Gibson Superflow 304 Stainless Steel 3.5 Inch Muffler 758350S

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: Dec 29, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 29, 2025 if ordered today

Gibson Superflow 304 Stainless Steel 3 Inch Muffler 758219S

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: Dec 15, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 15, 2025 if ordered today

Gibson Superflow 304 Stainless Steel 2.5 Inch Muffler 55106S

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 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

Gibson Superflow 304 Stainless Steel 2.5 Inch Muffler 55142S

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: Dec 29, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 29, 2025 if ordered today

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 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

Gibson Superflow 304 Stainless Steel 3 Inch Muffler 55189S

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

Part Number: GIB-55189S

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 1, 2025 if ordered today

Gibson Superflow 304 Stainless Steel 3 Inch Muffler 766300S

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

Part Number: GIB-766300S

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Dec 10, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 10, 2025 if ordered today

Gibson Superflow 304 Stainless Steel 2.25 Inch Muffler 55161S

Muffler, Superflow, Single 2.25 in. Inlet/Single 2.25 in. Outlet, Stainless Steel, Natural, Each

Part Number: GIB-55161S

Not Yet Reviewed

Estimated Ship Date: Dec 23, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 23, 2025 if ordered today

Gibson Superflow 304 Stainless Steel 2.5 Inch Muffler 788705S

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

Part Number: GIB-788705S

Not Yet Reviewed

Estimated Ship Date: Dec 23, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 23, 2025 if ordered today

Gibson Superflow 304 Stainless Steel 2.25 Inch Muffler 788700S

Muffler, Superflow, 2.25 in. Inlet/2.25 in.. Outlet, Stainless Steel, Polished, Each

Part Number: GIB-788700S

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 29, 2025 if ordered today

Gibson Superflow 304 Stainless Steel 3 Inch Muffler 55108S

Muffler, Superflow, Oval, Stainless, Dual 3.0 in. Offset Inlet, Dual 2.5 in. Offset Outlet, 24 in. Length

Part Number: GIB-55108S

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 29, 2025 if ordered today

Gibson Superflow 304 Stainless Steel 2.5 Inch Muffler 788200S

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

Part Number: GIB-788200S

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 29, 2025 if ordered today

Gibson Superflow 304 Stainless Steel 2.5 Inch Muffler 758216S

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: Dec 29, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 29, 2025 if ordered today

Page 1 of 1