Performance Mufflers & More

Give your ride a new attitude with mufflers from Flowmaster, Magnaflow, Thrush, Hushpower, Cherry Bomb, and more! We’ve got direct-fit and universal mufflers in...

Give your ride a new attitude with mufflers from Flowmaster, Magnaflow, Thrush, Hushpower, Cherry Bomb, and more! We’ve got direct-fit and universal mufflers in a variety of shapes, sizes, inlet diameters, and inlet/outlet quantities. Bring that throaty performance sound to your street machine or musclecar with a chambered muffler or choose the superior noise reduction of a turbo-style muffler. For all-out race performance, shop our selection of glasspack mufflers, straight-through racing mufflers, and resonators. What does a high performance muffler sound like? You decide with our huge in-stock selection of mufflers...

Related Parts: Exhaust Tubing | Exhaust Tips | Exhaust Clamps | Exhaust Hangers

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AP Exhaust Enforcer II Steel 2.5 Inch Muffler 3770SL

AP Exhaust Enforcer II Steel 2.5 Inch Muffler 3770SL

Muffler, Enforcer II, Oval, Steel, Aluminized, 26 in. Length, 2.50 in. Inlet, 2.25 in. Outlet, Offset/Center, Each

Part Number: APH-3770SL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

AP Exhaust Enforcer II Steel 2.25 Inch Muffler 3746SL

Muffler, Enforcer II, Oval, Steel, Aluminized, 26 in. Length, 2.25 in. Inlet, 2.25 in. Outlet, Offset/Offset, Each

Part Number: APH-3746SL

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

AP Exhaust Enforcer II Steel 2.25 Inch Muffler 3777SL

Muffler, Enforcer II, Oval, Steel, Aluminized, 26 in. Length, 2.25 in. Inlet, 2.00 in. Outlet, Offset/Center, Each

Part Number: APH-3777SL

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

AP Exhaust OE Replacement Steel 2.25 Inch Muffler 30068

Mufflers, OE Replacement, Steel, Aluminized, Baffled, Oval Case, Mazda, Each

Part Number: APH-30068

2.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

AP Exhaust Challenge Steel 2 Inch Muffler 3180

Muffler, Challenge, Steel, Aluminized, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: APH-3180

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust Challenge Steel 1.75 Inch Muffler 3471

Muffler, Challenge, Steel, Aluminized, Acura, 1.8L, Each

Part Number: APH-3471

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust Challenge Steel 2.5 Inch Muffler 2944

Mufflers, Challenge, Steel, Aluminized, Baffled, Oval Case, Chevrolet, GMC, Each

Part Number: APH-2944

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust MSL Maximum Steel 2 Inch Muffler 700491

Muffler, MSL, Oval, Baffled, Steel, Aluminized, 2.00 in. Inlets/2.25 in. Outlet, 31.00 in. Overall Length, Each

Part Number: APH-700491

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust Challenge Steel 2.5 Inch Muffler 3108

Muffler, Challenge, Steel, Aluminized, Chevy, GMC, Each

Part Number: APH-3108

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust Challenge Steel 2.25 Inch Muffler 3032

Muffler, Challenge, Steel, Aluminized, Buick, Cadillac, Oldsmobile, Each

Part Number: APH-3032

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust OE Replacement Steel 1.75 Inch Muffler 2522

Muffler, OE Replacement, Steel, Aluminized, for use on Honda®, 3.0L, Each

Part Number: APH-2522

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust Challenge Steel 2 Inch Muffler 3217

Muffler, Challenge, Steel, Aluminized, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: APH-3217

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust OE Replacement Steel 2 Inch Muffler 30087

Muffler 13-17 GMC Acadia 3.6L / 13-17 Buick Enclave 3.6L

Part Number: APH-30087

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust OE Replacement Steel 1.75 Inch Muffler 2597

Muffler, OE Replacement, Steel, Aluminized, for use on Honda®, 3.0L, Each

Part Number: APH-2597

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust OE Replacement Steel 2.25 Inch Muffler 30067

muffler 14-17 Mazda 6 2.5L

Part Number: APH-30067

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust OE Replacement Steel 2.25 Inch Muffler 30070

muffler 14-16 Mazda 3 2.0L Excl. PZEV

Part Number: APH-30070

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust OE Replacement Steel 1.75 Inch Muffler 2523

Muffler, OE Replacement, Steel, Aluminized, for use on Honda®, 3.0L, Each

Part Number: APH-2523

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust OE Replacement Steel 1.75 Inch Muffler 2596

Muffler, OE Replacement, Steel, Aluminized, for use on Honda®, 3.0L, Each

Part Number: APH-2596

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust OE Replacement Steel 2.25 Inch Muffler 30069

muffler 14-16 Mazda 3 2.0L Excl. PZEV

Part Number: APH-30069

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust Silentone Series Steel 3 Inch Muffler 5568

Muffler, Silentone, Baffled, Oval, Steel, Aluminized, 3.00 in. Offset Inlet, 3.00 in. Center Outlet, Each

Part Number: APH-5568

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

AP Exhaust Enforcer II Steel 2 Inch Muffler 3776SL

Muffler, Enforcer II, Oval, Steel, Aluminized, 26 in. Length, 2.00 in. Inlet, 2.00 in. Outlet, Offset/Center, Each

Part Number: APH-3776SL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust Silentone Series Steel 2 Inch Muffler 5555

Muffler, Silentone, Baffled, Oval, Steel, Aluminized, 2.00 in. Offset Inlet, 2.00 in. Center Outlet, Each

Part Number: APH-5555

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust Enforcer II Steel 2.25 Inch Muffler 3775SL

Muffler, Enforcer II, Oval, Steel, Aluminized, 26 in. Length, 2.25 in. Inlet, 2.00 in. Outlet, Offset/Offset, Each

Part Number: APH-3775SL

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

AP Exhaust Challenge Steel 2.5 Inch Muffler 3424

Muffler, Challenge, Steel, Aluminized, Ford, Each

Part Number: APH-3424

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

AP Exhaust OE Replacement Steel 2 Inch Muffler 30088

Muffler 13-17 GMC Acadia 3.6L / 13-17 Buick Enclave 3.6L

Part Number: APH-30088

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

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