MagnaFlow Performance Mufflers

4.71 out of 5 stars 1147 Customer Reviews

MagnaFlow performance mufflers are designed to provide your vehicle with more power and excellent sound. These exhaust units are available in several styles, and most feature a large-diameter, perforated stainless steel core with a straight-through design—for unrestricted flow and sound control. All contact points are lap-jointed and welded to avoid distortion or cracking at the seams. The mufflers are available in a variety of inlet/outlet diameters, inlet quantities, shapes, and finishes. Order the model that best suits your vehicle application.

Results 1 - 25 of 36

MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 11385

Muffler, Dual 2.25 in. Inlet/Dual 2.25 in. Outlet, Stainless Steel, Tru-X core design, Natural, Each

Part Number: MPE-11385

4.79 out of 5 stars ( 28 )

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MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 10415

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

Part Number: MPE-10415

4.63 out of 5 stars ( 27 )

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MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 11235

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

Part Number: MPE-11235

4.45 out of 5 stars ( 11 )

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MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 11265

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

Part Number: MPE-11265

5.0 out of 5 stars ( 7 )

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MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 12225

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

Part Number: MPE-12225

5.0 out of 5 stars ( 2 )

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MagnaFlow Performance 409 Stainless Steel 2.5 Inch Muffler 12266

Muffler, Stainless Steel, Natural, Chevy, Pontiac, Each

Part Number: MPE-12266

4.43 out of 5 stars ( 14 )

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MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 11378

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

Part Number: MPE-11378

5.0 out of 5 stars ( 5 )

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MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 11365

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

Part Number: MPE-11365

4.0 out of 5 stars ( 4 )

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MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 12615

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

Part Number: MPE-12615

4.0 out of 5 stars ( 3 )

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MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 12138

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

Part Number: MPE-12138

5.0 out of 5 stars ( 3 )

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MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 10425

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

Part Number: MPE-10425

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 11375

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

Part Number: MPE-11375

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 11245

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

Part Number: MPE-11245

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 11255

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

Part Number: MPE-11255

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 12245

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

Part Number: MPE-12245

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 20, 2025 if ordered today

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Estimated Ship Date: Aug 20, 2025 if ordered today

MagnaFlow Performance 409 Stainless Steel 2.5 Inch Muffler 14266

Muffler, Performance, Stainless Steel, Polished, Chevy, Pontiac, 5.0, 5.7L, Each

Part Number: MPE-14266

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

MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 12215

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

Part Number: MPE-12215

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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MagnaFlow Performance 409 Stainless Steel 3 Inch Muffler 12278

Muffler, 3.00 in. Inlet/Dual 2.25 in. Outlet, Stainless Steel, Natural, Each

Part Number: MPE-12278

5.0 out of 5 stars ( 12 )

Estimated Ship Date: Tomorrow

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MagnaFlow Performance 409 Stainless Steel 2.5 Inch Muffler 12258

Muffler, 2.50 in. Inlet/Dual 2.25 in. Outlet, Stainless Steel, Natural, Each

Part Number: MPE-12258

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Aug 22, 2025 if ordered today

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Estimated Ship Date: Aug 22, 2025 if ordered today

MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 12865

Muffler, 2.25 in. Inlet/2.25 in. Outlet, 5 in. Round Case, 20 in. Long Overall, Satin Stainless Steel, Each

Part Number: MPE-12865

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 22, 2025 if ordered today

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Estimated Ship Date: Aug 22, 2025 if ordered today

MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 12251

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

Part Number: MPE-12251

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

MagnaFlow Performance 409 Stainless Steel 2 Inch Muffler 11132

Muffler, 2.00 in. Inlet/2.25 in. Outlet, Stainless Steel, Natural, Each

Part Number: MPE-11132

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Aug 22, 2025 if ordered today

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Estimated Ship Date: Aug 22, 2025 if ordered today

MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 14335

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

Part Number: MPE-14335

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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MagnaFlow Performance 409 Stainless Steel 2.25 Inch Muffler 14715

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

Part Number: MPE-14715

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

MagnaFlow Performance 409 Stainless Steel 2.5 Inch Muffler 12761

Muffler, 2.50 in. Inlet/Dual 2.25 in. Outlet, Stainless Steel, Natural, Each

Part Number: MPE-12761

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

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