Summit Racing SpeedCard - learn how to get 15% back up to $150

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Summit Racing SpeedCard - learn how to get 15% back up to $150

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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 31 Items.

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Results 1 - 25 of 31

Flowmaster 40 Series Steel 2.5 Inch Muffler 42541

Flowmaster 40 Series Steel 2.5 Inch Muffler 42541

Flowmaster 40 Series Steel 2.5 Inch Muffler 42541

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

Part Number: FLO-42541

4.74 out of 5 stars ( 86 )

Estimated Ship Date: Tomorrow

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Flowmaster 40 Series Steel 3 Inch Muffler 43041

Flowmaster 40 Series Steel 3 Inch Muffler 43041

Flowmaster 40 Series Steel 3 Inch Muffler 43041

Muffler, Flowmaster 40 Series, 3 in. Offset Inlet/3 in. Center Outlet, Steel, Black, Each

Part Number: FLO-43041

4.83 out of 5 stars ( 47 )

Estimated Ship Date: Tomorrow

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Flowmaster 50 Series Delta Flow Steel 2.5 Inch Muffler 942551

Flowmaster 50 Series Delta Flow Steel 2.5 Inch Muffler 942551

Flowmaster 50 Series Delta Flow Steel 2.5 Inch Muffler 942551

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

Part Number: FLO-942551

4.84 out of 5 stars ( 37 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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Flowmaster Super 44 Series Steel 2.5 Inch Muffler 942546

Flowmaster Super 44 Series Steel 2.5 Inch Muffler 942546

Flowmaster Super 44 Series Steel 2.5 Inch Muffler 942546

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

Part Number: FLO-942546

4.65 out of 5 stars ( 52 )

Estimated Ship Date: Tomorrow

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Flowmaster 50 Series Delta Flow 409 Stainless Steel 2.5 Inch Muffler 842551

Flowmaster 50 Series Delta Flow 409 Stainless Steel 2.5 Inch Muffler 842551

Flowmaster 50 Series Delta Flow 409 Stainless Steel 2.5 Inch Muffler 842551

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

Part Number: FLO-842551

4.52 out of 5 stars ( 23 )

Estimated Ship Date: Tomorrow

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Flowmaster 50 Series Delta Flow 409 Stainless Steel 3 Inch Muffler 843051

Flowmaster 50 Series Delta Flow 409 Stainless Steel 3 Inch Muffler 843051

Flowmaster 50 Series Delta Flow 409 Stainless Steel 3 Inch Muffler 843051

Muffler, Delta Flow 50 Series, 3 in. Inlet/3 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-843051

4.78 out of 5 stars ( 18 )

Estimated Ship Date: Tomorrow

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Flowmaster Stainless Steel Super 44 Series 409 Stainless Steel 3 Inch Muffler 843046

Flowmaster Stainless Steel Super 44 Series 409 Stainless Steel 3 Inch Muffler 843046

Flowmaster Stainless Steel Super 44 Series 409 Stainless Steel 3 Inch Muffler 843046

Muffler, Super 44 Series, 3 in. Inlet/3 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-843046

4.81 out of 5 stars ( 21 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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Flowmaster Super 10 Series 409 Stainless Steel 3 Inch Muffler 843016

Flowmaster Super 10 Series 409 Stainless Steel 3 Inch Muffler 843016

Flowmaster Super 10 Series 409 Stainless Steel 3 Inch Muffler 843016

Muffler, Super 10 Series, 3.0 in. Inlet/3.0 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-843016

4.91 out of 5 stars ( 23 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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Flowmaster 40 Series Delta Flow Steel 2.5 Inch Muffler 942541

Flowmaster 40 Series Delta Flow Steel 2.5 Inch Muffler 942541

Flowmaster 40 Series Delta Flow Steel 2.5 Inch Muffler 942541

Muffler, Delta Flow 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-942541

4.57 out of 5 stars ( 14 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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Flowmaster Super 50 Series Performance Steel 3 Inch Muffler 53056

Flowmaster Super 50 Series Performance Steel 3 Inch Muffler 53056

Flowmaster Super 50 Series Performance Steel 3 Inch Muffler 53056

Muffler, Super 50 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Aluminized, Each

Part Number: FLO-53056

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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Flowmaster 50 Series Delta Flow Steel 3 Inch Muffler 943051

Flowmaster 50 Series Delta Flow Steel 3 Inch Muffler 943051

Flowmaster 50 Series Delta Flow Steel 3 Inch Muffler 943051

Muffler, Delta Flow 50 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-943051

4.68 out of 5 stars ( 25 )

Estimated Ship Date: Tomorrow

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Flowmaster 40 Series Delta Flow 409 Stainless Steel 2.5 Inch Muffler 842541

Flowmaster 40 Series Delta Flow 409 Stainless Steel 2.5 Inch Muffler 842541

Flowmaster 40 Series Delta Flow 409 Stainless Steel 2.5 Inch Muffler 842541

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

Part Number: FLO-842541

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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Flowmaster Super 10 Series 409 Stainless Steel 2.5 Inch Muffler 842516

Flowmaster Super 10 Series 409 Stainless Steel 2.5 Inch Muffler 842516

Flowmaster Super 10 Series 409 Stainless Steel 2.5 Inch Muffler 842516

Muffler, Super 10 Series, 2.5 in. Inlet/2.5 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842516

4.96 out of 5 stars ( 23 )

Estimated Ship Date: Tomorrow

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Flowmaster Super 50 Series Performance Steel 2.5 Inch Muffler 52556

Flowmaster Super 50 Series Performance Steel 2.5 Inch Muffler 52556

Flowmaster Super 50 Series Performance Steel 2.5 Inch Muffler 52556

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

Part Number: FLO-52556

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Flowmaster Stainless Steel Super 44 Series 409 Stainless Steel 2.5 Inch Muffler 842546

Flowmaster Stainless Steel Super 44 Series 409 Stainless Steel 2.5 Inch Muffler 842546

Flowmaster Stainless Steel Super 44 Series 409 Stainless Steel 2.5 Inch Muffler 842546

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

Part Number: FLO-842546

4.71 out of 5 stars ( 17 )

Estimated Ship Date: Tomorrow

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Flowmaster Super 44 Series Steel 3 Inch Muffler 943046

Flowmaster Super 44 Series Steel 3 Inch Muffler 943046

Flowmaster Super 44 Series Steel 3 Inch Muffler 943046

Muffler, Super 44 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-943046

4.79 out of 5 stars ( 19 )

Estimated Ship Date: Tomorrow

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Flowmaster 40 Series Delta Flow Steel 3 Inch Muffler 943041

Flowmaster 40 Series Delta Flow Steel 3 Inch Muffler 943041

Flowmaster 40 Series Delta Flow Steel 3 Inch Muffler 943041

Muffler, Delta Flow 40 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-943041

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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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: Tomorrow

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