GMC Mufflers & Resonators

Muffler, Super 40 Series, 3 in. Inlet/Dual 2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-9530452

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Muffler, Tru-Fit Series, Steel, Aluminized, 2.50 in. Inlet/2.00 in. Outlet, Each

Part Number: WLK-18177

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Muffler, Tru-Fit Series, Steel, Aluminized, 3.00 in. Inlet/3.00 in. Outlet, Each

Part Number: WLK-18180

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

Muffler, OE Replacement, Steel, Aluminized, Chevy, GMC, 6.0, 8.1L, Each

Part Number: APH-2525

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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

Part Number: FLO-952448

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Muffler, Xlerator Performance, Stainless Steel, Natural, Chevy, GMC, 5.7L, Each

Part Number: APH-XS2298

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Mufflers, Direct-Fit SoundFX, Steel, Aluminized, 29.00 in. Overall Length, Chevrolet, GMC, Each

Part Number: WLK-18906

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Muffler, Direct Fit, SoundFX, Oval, Steel, Aluminized, Chevy, GMC, 4.3L, Each

Part Number: WLK-18934

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 25, 2026 if ordered today

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Muffler, Tru-Fit, Steel, Aluminized, 2.0 in. Inlet, 2.0 in. Outlet, 25.0 in. Length, Each

Part Number: WLK-18101

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Walker Quiet-Flow SS Muffler

Part Number: WLK-21405

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Mufflers-Quiet-Flow

Part Number: WLK-22307

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Muffler, Quiet-Flow 3, 2 1/2 in. Inlet/2 1/4 in. Outlet, Steel, Aluminized, Chevy, GMC, Each

Part Number: WLK-22512

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Feb 25, 2026 if ordered today

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Muffler, Quiet-Flow 3, 2.625 in. Inlet/Outlet, Steel, Aluminized, Chevy, GMC, Each

Part Number: WLK-21423

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Muffler, Tru-Fit Series, Steel, Aluminized, 2.50 in. Inlet/2.25 in. Outlet, Each

Part Number: WLK-18112

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Muffler, SoundFX Series, Steel, Aluminized, 2.00 in. Inlet/1.812 in. Outlet, Each

Part Number: WLK-17829

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Muffler, OE Replacement, Steel, Aluminized, Chevy, GMC, 4.8, 5.3L, Each

Part Number: APH-2549

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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Muffler, Tru-Fit, Steel, Aluminized, 2.25 in. Inlet, 2.25 in. Outlet, 26.0 in. Length, Each

Part Number: WLK-18113

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Mufflers, Direct-Fit SoundFX, Steel, Aluminized, 3.00 in. Offset Inlet, 2.50 in. Offset Outlet, 24.000 in. Overall Length, Chevrolet, GMC, Each

Part Number: WLK-18223

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Estimated Ship Date: Today

Mufflers, Direct Fit SoundFX, Steel, Aluminized, 28.000 in. Overall Length, Cadillac, Chevy, GMC, Each

Part Number: WLK-18957

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Muffler, Replacement, 3 in. Inlet/3 in. Outlet, Steel, Aluminized, Chevy, GMC, P-Series Van, Each

Part Number: WLK-21476

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Feb 26, 2026 if ordered today

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Muffler, Replacement, 3.0 in. Center Inlet/Dual 2.25 in. Outlets, Steel, Aluminized, Each

Part Number: SUM-638011

4.27 out of 5 stars ( 15 )

Estimated Ship Date: Today

Muffler, School Bus, Round, Stainless Steel, Natural, 39.00 in. Overall Length, Each

Part Number: WLK-22566

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Feb 26, 2026 if ordered today

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Walker Heavy Duty Muffler

Part Number: WLK-22449

Not Yet Reviewed

Estimated Ship Date: Feb 26, 2026 if ordered today

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Muffler, Quiet-Flow 3, 2 3/4 in. Inlet/2 3/4 in. Outlet, Steel, Aluminized, Chevy, GMC, C/K-Series Pickup, Each

Part Number: WLK-21046

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 26, 2026 if ordered today

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Muffler, Quiet-Flow 3, 2 1/2 in. Inlet/2 1/4 in. Outlet, Steel, Aluminized, Chevy, GMC, Each

Part Number: WLK-21910

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Feb 26, 2026 if ordered today

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