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Flowmaster

Flowmaster High-Flow Performance Mufflers

Equip your ride with Flowmaster performance mufflers, a proven choice for classic and modern muscle cars, street rods, heavy-duty towing, and high-performance racing...

Equip your ride with Flowmaster performance mufflers, a proven choice for classic and modern muscle cars, street rods, heavy-duty towing, and high-performance racing applications. Designed for unrestricted exhaust flow, the mufflers deliver real performance gains along with the muscular sound Flowmaster is known for. Multiple high-flow internal designs—including chambered mufflers, exclusive laminar-flow technology, straight-through performance mufflers, and race mufflers—make it easy to outfit your ride with the sound and performance you want. Built from MIG-welded aluminized steel or stainless steel for long-lasting...

Equip your ride with Flowmaster performance mufflers, a proven choice for classic and modern muscle cars, street rods, heavy-duty towing, and high-performance racing applications. Designed for unrestricted exhaust flow, the mufflers deliver real performance gains along with the muscular sound Flowmaster is known for. Multiple high-flow internal designs—including chambered mufflers, exclusive laminar-flow technology, straight-through performance mufflers, and race mufflers—make it easy to outfit your ride with the sound and performance you want. Built from MIG-welded aluminized steel or stainless steel for long-lasting durability, Flowmaster mufflers are available in a wide range of inlet and outlet locations, dimensions, and case configurations. Shop the entire selection of Flowmaster performance mufflers at Summit Racing today.

Showing In Stock Items. Show All 18 Items.

Individual Parts

Part Groups

Results 1 - 18 of 18

Flowmaster Super HP-2 409 Stainless Steel 2.5 Inch Muffler 12512409

Flowmaster Super HP-2 409 Stainless Steel 2.5 Inch Muffler 12512409

Flowmaster Super HP-2 409 Stainless Steel 2.5 Inch Muffler 12512409

Muffler, Stainless Steel, Black, 2.5 in. Inlet/Outlet, 17 in. Length, 4 in. Thick, Each

Part Number: FLO-12512409

4.85 out of 5 stars ( 20 )

Estimated Ship Date: Today

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Flowmaster Super HP-2 304 Stainless Steel 2.5 Inch Muffler 12512304

Flowmaster Super HP-2 304 Stainless Steel 2.5 Inch Muffler 12512304

Flowmaster Super HP-2 304 Stainless Steel 2.5 Inch Muffler 12512304

Muffler, Oval, Stainless, Natural, 2.5 in. Center Inlet/Outlet, 18 in. Overall Length, Each

Part Number: FLO-12512304

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Flowmaster Super HP-2 409 Stainless Steel 2.5 Inch Muffler 12518409

Flowmaster Super HP-2 409 Stainless Steel 2.5 Inch Muffler 12518409

Flowmaster Super HP-2 409 Stainless Steel 2.5 Inch Muffler 12518409

Muffler, 2 1/2 in. Inlet/2 1/2 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-12518409

4.71 out of 5 stars ( 24 )

Estimated Ship Date: Today

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Flowmaster Super HP-2 409 Stainless Steel 2.25 Inch Muffler 12412409

Flowmaster Super HP-2 409 Stainless Steel 2.25 Inch Muffler 12412409

Flowmaster Super HP-2 409 Stainless Steel 2.25 Inch Muffler 12412409

Resonator, Stainless Steel, Black, 2.25 in. Inlet/Outlet, 17 in. Length, 4 in. Diameter, Each

Part Number: FLO-12412409

4.6 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Flowmaster Super HP-2 304 Stainless Steel 2.5 Inch Muffler 12518304

Flowmaster Super HP-2 304 Stainless Steel 2.5 Inch Muffler 12518304

Flowmaster Super HP-2 304 Stainless Steel 2.5 Inch Muffler 12518304

Muffler, 2 1/2 in. Inlet/2 1/2 in. Outlet, Stainless Steel, Natural, Each

Part Number: FLO-12518304

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Flowmaster Super HP-2 409 Stainless Steel 2 Inch Muffler 12012409

Flowmaster Super HP-2 409 Stainless Steel 2 Inch Muffler 12012409

Flowmaster Super HP-2 409 Stainless Steel 2 Inch Muffler 12012409

Muffler, Oval, Stainless Steel, Black, 2 in. Center Inlet/Outlet, 18 in. Overall Length, Each

Part Number: FLO-12012409

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Flowmaster Super HP-2 409 Stainless Steel 2 Inch Muffler 12018409

Flowmaster Super HP-2 409 Stainless Steel 2 Inch Muffler 12018409

Flowmaster Super HP-2 409 Stainless Steel 2 Inch Muffler 12018409

Muffler, 2 in. Inlet/2 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-12018409

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Flowmaster Super HP-2 409 Stainless Steel 2.25 Inch Muffler 12418409

Flowmaster Super HP-2 409 Stainless Steel 2.25 Inch Muffler 12418409

Flowmaster Super HP-2 409 Stainless Steel 2.25 Inch Muffler 12418409

Muffler, 2 1/4 in. Inlet/2 1/4 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-12418409

4.75 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Flowmaster 40 Series Steel 2.25 Inch Muffler 42441

Flowmaster 40 Series Steel 2.25 Inch Muffler 42441

Flowmaster 40 Series Steel 2.25 Inch Muffler 42441

Muffler, American Thunder 40 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Steel, Black, Each

Part Number: FLO-42441

4.88 out of 5 stars ( 32 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Flowmaster 50 Series Delta Flow Steel 2.25 Inch Muffler 942451

Flowmaster 50 Series Delta Flow Steel 2.25 Inch Muffler 942451

Flowmaster 50 Series Delta Flow Steel 2.25 Inch Muffler 942451

Muffler, Delta Flow 50 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Steel, Black, Each

Part Number: FLO-942451

4.3 out of 5 stars ( 20 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Flowmaster FlowFX 409 Stainless Steel 2.25 Inch Muffler 71225

Flowmaster FlowFX 409 Stainless Steel 2.25 Inch Muffler 71225

Flowmaster FlowFX 409 Stainless Steel 2.25 Inch Muffler 71225

Muffler, FlowFX Series, 2.25 in. Offset Inlet/2.25 in. Center Outlet, Stainless Steel, Natural, Each

Part Number: FLO-71225

4.58 out of 5 stars ( 26 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Flowmaster Super 44 Series Steel 2.25 Inch Muffler 942446

Flowmaster Super 44 Series Steel 2.25 Inch Muffler 942446

Flowmaster Super 44 Series Steel 2.25 Inch Muffler 942446

Muffler, Super 44 Series, 2.25 in. Inlet/2.25 in. Outlet, Steel, Black, Each

Part Number: FLO-942446

4.66 out of 5 stars ( 29 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Flowmaster 50 Series Delta Flow Steel 2 Inch Muffler 942051

Flowmaster 50 Series Delta Flow Steel 2 Inch Muffler 942051

Flowmaster 50 Series Delta Flow Steel 2 Inch Muffler 942051

Muffler, Delta Flow 50 Series, 2 in. Inlet/2 in. Outlet, Steel, Black, Each

Part Number: FLO-942051

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Flowmaster 40 Series Delta Flow Steel 2 Inch Muffler 942041

Flowmaster 40 Series Delta Flow Steel 2 Inch Muffler 942041

Flowmaster 40 Series Delta Flow Steel 2 Inch Muffler 942041

Muffler, Delta Flow 40 Series, 2 in. Inlet/2 in. Outlet, Steel, Black, Each

Part Number: FLO-942041

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Flowmaster Super 50 Series Performance Steel 2.25 Inch Muffler 52456

Flowmaster Super 50 Series Performance Steel 2.25 Inch Muffler 52456

Flowmaster Super 50 Series Performance Steel 2.25 Inch Muffler 52456

Muffler, Super 50 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Steel, Black, Aluminized, Each

Part Number: FLO-52456

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Flowmaster 50 Series Delta Flow 409 Stainless Steel 2.25 Inch Muffler 842451

Flowmaster 50 Series Delta Flow 409 Stainless Steel 2.25 Inch Muffler 842451

Flowmaster 50 Series Delta Flow 409 Stainless Steel 2.25 Inch Muffler 842451

Muffler, Delta Flow 50 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842451

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Flowmaster Stainless Steel 40 Series 409 Stainless Steel 2.25 Inch Muffler 8042441

Flowmaster Stainless Steel 40 Series 409 Stainless Steel 2.25 Inch Muffler 8042441

Flowmaster Stainless Steel 40 Series 409 Stainless Steel 2.25 Inch Muffler 8042441

Muffler, 40 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-8042441

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Flowmaster Stainless Steel Super 44 Series 409 Stainless Steel 2.25 Inch Muffler 842446

Flowmaster Stainless Steel Super 44 Series 409 Stainless Steel 2.25 Inch Muffler 842446

Flowmaster Stainless Steel Super 44 Series 409 Stainless Steel 2.25 Inch Muffler 842446

Muffler, Super 44 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842446

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Today

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