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Flowmaster High-Flow Performance Mufflers

Equip your ride with Flowmaster performance mufflersa proven choice for classic and modern muscle carsstreet rodsheavy-duty towingand high-performance racing...

Equip your ride with Flowmaster performance mufflersa proven choice for classic and modern muscle carsstreet rodsheavy-duty towingand high-performance racing applications. Designed for unrestricted exhaust flowthe mufflers deliver real performance gains along with the muscular sound Flowmaster is known for. Multiple high-flow internal designs—including chambered mufflersexclusive laminar-flow technologystraight-through performance mufflersand 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...

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Welcome International Customers

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In the United States?

International Customer Options

Shipping Options

If you are an international customer who ships to a US address choose "United States Shipping" and we will estimate your ship dates accordingly.

International Shipping
United States Shipping

Currency Options

If you are an international customer and would like to change the currency that prices are displayed inyou can do so here. Please note that Checkout Prices will be in US Dollars.

United States Shipping Options

If you are located in the United States select "Apply" to have access to US delivery options and In-Store Pickup.

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Individual Parts

Part Groups

Results 1 - 25 of 240

Flowmaster 40 Series Steel 2.5 Inch Muffler 42541

MufflerAmerican Thunder 40 Series2 1/2 in. Inlet/2 1/2 in. OutletSteelBlackEach

Part Number: FLO-42541

4.74 out of 5 stars ( 86 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster FlowFX 409 Stainless Steel 2.5 Inch Muffler 71416

MufflerFlowFX Series2.5 in. Inlet/2.5 in. OutletStainless SteelNaturalRound BodyEach

Part Number: FLO-71416

4.75 out of 5 stars ( 64 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster FlowFX 409 Stainless Steel 2.5 Inch Muffler 71226

MufflerFlowFX Series2.5 in. Inlet2.5 in. Outlet409 Stainless SteelNatural FinishEach

Part Number: FLO-71226

4.8 out of 5 stars ( 76 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster 50 Series Delta Flow Steel 2.5 Inch Muffler 942551

MufflerDelta Flow 50 Series2 1/2 in. Inlet/2 1/2 in. OutletSteelBlackEach

Part Number: FLO-942551

4.84 out of 5 stars ( 37 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster 40 Series Steel 3 Inch Muffler 43041

MufflerFlowmaster 40 Series3 in. Offset Inlet/3 in. Center OutletSteelBlackEach

Part Number: FLO-43041

4.83 out of 5 stars ( 47 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster FlowFX 409 Stainless Steel 3 Inch Muffler 71229

MufflerFlowFX Series3 in. Offset Inlet/3 in. Center OutletReversibleStainless SteelNaturalEach

Part Number: FLO-71229

4.6 out of 5 stars ( 70 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

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

MufflerStainless SteelBlack2.5 in. Inlet/Outlet17 in. Length4 in. ThickEach

Part Number: FLO-12512409

4.85 out of 5 stars ( 20 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster 40 Series Steel 2.25 Inch Muffler 42441

MufflerAmerican Thunder 40 Series2 1/4 in. Inlet/2 1/4 in. OutletSteelBlackEach

Part Number: FLO-42441

4.88 out of 5 stars ( 32 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster FlowFX 409 Stainless Steel 3 Inch Muffler 71419

MufflersFlowFXRound CaseStainless SteelNaturalSingle 3.00 in. Center Inlet/Outlet20.000 in. Overall LengthEach

Part Number: FLO-71419

4.76 out of 5 stars ( 38 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster 40 Series Steel 2.5 Inch Muffler 42543

Muffler40 Series2 1/2 in. Offset Inlet2 1/2 in. Offset OutletChamberedSteelBlackEach

Part Number: FLO-42543

4.9 out of 5 stars ( 42 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster Super 10 Series 409 Stainless Steel 2.5 Inch Muffler 842515

MufflerSuper 10 Series2.5 in. Inlet/2.5 in. OutletStainless SteelBlackEach

Part Number: FLO-842515

4.85 out of 5 stars ( 111 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster 50 Series Delta Flow 409 Stainless Steel 2.5 Inch Muffler 842553

MufflerDelta Flow 50 Series2 1/2 in. Inlet/2 1/2 in. OutletStainless SteelBlackEach

Part Number: FLO-842553

4.63 out of 5 stars ( 19 )

Estimated Ship Date: Apr 62026 if shipped by air

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Estimated Ship Date: Apr 62026 if shipped by air

Flowmaster Super 10 Series 409 Stainless Steel 3 Inch Muffler 843015

MufflerSuper 10 Series3.0 in. Center Inlet/3.0 in. Center OutletChamberedStainless SteelBlackEach

Part Number: FLO-843015

4.87 out of 5 stars ( 69 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster Super 44 Series Steel 2.5 Inch Muffler 942546

MufflerSuper 44 Series2 1/2 in. Inlet/2 1/2 in. OutletSteelBlackEach

Part Number: FLO-942546

4.65 out of 5 stars ( 52 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster 50 Series Delta Flow Steel 3 Inch Muffler 943050

MufflerDelta Flow 50 Series3 in. Inlet/3 in. OutletSteelBlackEach

Part Number: FLO-943050

4.48 out of 5 stars ( 40 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster FlowFX 409 Stainless Steel 2.5 Inch Muffler 71236

MufflerFlowFX Series2.5 in. Inlet/2.5 in. OutletStainless SteelNaturalEach

Part Number: FLO-71236

4.8 out of 5 stars ( 25 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster Super 40 Series Delta Flow Steel 3 Inch Muffler 953045

MufflerSuper 40 Series3 in. Inlet/3 in. OutletSteelBlackEach

Part Number: FLO-953045

5.0 out of 5 stars ( 13 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

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

MufflerOvalStainlessNatural2.5 in. Center Inlet/Outlet18 in. Overall LengthEach

Part Number: FLO-12512304

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

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

MufflerDelta Flow 50 Series3 in. Inlet/3 in. OutletStainless SteelBlackEach

Part Number: FLO-843051

4.78 out of 5 stars ( 18 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster Super 44 Series Steel 2.5 Inch Muffler 942545

MufflerSuper 44 Series2 1/2 in. Inlet/2 1/2 in. OutletSteelBlackEach

Part Number: FLO-942545

4.66 out of 5 stars ( 53 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

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

MufflerDelta Flow 50 Series2 1/2 in. Inlet/2 1/2 in. OutletStainless SteelBlackEach

Part Number: FLO-842551

4.52 out of 5 stars ( 23 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster 40 Series Steel 2.5 Inch Muffler 42542

Muffler40 Series2.5 in. Inlet/OutletCenter InletOffset OutletAluminized SteelBlackEach

Part Number: FLO-42542

5.0 out of 5 stars ( 14 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

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

Muffler2 1/2 in. Inlet/2 1/2 in. OutletStainless SteelNaturalEach

Part Number: FLO-12518304

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

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

MufflerSuper 44 Series3 in. Inlet/3 in. OutletStainless SteelBlackEach

Part Number: FLO-843046

4.81 out of 5 stars ( 21 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

Flowmaster FlowFX 409 Stainless Steel 2.25 Inch Muffler 71225

MufflerFlowFX Series2.25 in. Offset Inlet/2.25 in. Center OutletStainless SteelNaturalEach

Part Number: FLO-71225

4.58 out of 5 stars ( 26 )

Estimated Ship Date: Mar 122026

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Estimated Ship Date: Mar 122026

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