GMC Mufflers & Resonators

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

Part Number: FLO-8430402

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Muffler, Heavy-Duty, Oval, Steel, Aluminized, 4.00 in. Offset Inlet/Outlet, 34.00 in. Overall Length, Each

Part Number: WLK-22004

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 8, 2026 if ordered today

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Muffler, Delta Flow 50 Series, 3 in. Inlet/Dual 2 1/4 in. Outlet, Steel, Black, Each

Part Number: FLO-9430522

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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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, Delta Flow 50 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842453

4.8 out of 5 stars ( 5 )

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Muffler, XL 3 Chamber, 3.00 in. Inlet/Dual 2.50 in. Outlet, Stainless Steel, Natural, Each

Part Number: MPE-13288

3.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Muffler, Quiet-Flow SS, Oval, Stainless Steel, Natural, 2.625 in. Inlet/Outlet, Chevy, GMC, Each

Part Number: WLK-21919

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 12, 2026 if ordered today

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Muffler, Big Block II 70 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-53072

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Muffler, Ultra Flo Welded, 2 1/4 in. Inlet/2 1/4 in. Outlet, Stainless Steel, Each

Part Number: WLK-17226

5.0 out of 5 stars ( 6 )

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Muffler, Xlerator Performance, Steel, Aluminized, Chevy, GMC, 6.0, 8.1L, Each

Part Number: APH-X504

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

Part Number: WLK-22673

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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

Walker Quiet-Flow SS Muffler

Part Number: WLK-21405

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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 Upgrade, Apollo GT, 409 Stainless Steel, Natural, Perforated Core, 3 in. Inlet, 3 in. Outlet, Chevrolet, GMC, Each

Part Number: AFE-49C44114

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Muffler, MSL, Oval, Baffled, Steel, Aluminized, 2.25 in. Offset Inlet/Outlet, 23.00 in. Overall Length, Each

Part Number: APH-700473

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Mufflers, MSL Maximum, Steel, Aluminized, Perforated Tube, Oval Case, Chevrolet, GMC, Each

Part Number: APH-700222

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Mufflers, MSL Maximum, Oval Case, Steel, Aluminized, 24.00 in. Overall Length, Chevy, GMC, Isuzu, Each

Part Number: APH-700182

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Estimated Ship Date: Jan 6, 2026 if ordered today

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

Part Number: APH-2589

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Estimated Ship Date: Jan 6, 2026 if ordered today

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Mufflers, OE Replacement, Steel, Aluminized, Round Case, Chevrolet, GMC, Each

Part Number: APH-54113

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Estimated Ship Date: Jan 6, 2026 if ordered today

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Challenge Muffler - Lifetime Warranty 14-16 Silverado / GMC Sierra 1500 Series 4.3L/5.3L 2WD/4WD

Part Number: APH-2621

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Estimated Ship Date: Jan 6, 2026 if ordered today

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Muffler, Ultra Flo SS, 3 in. Inlet/Dual 2 1/2 in. Outlet, Stainless Steel, Polished, Each

Part Number: WLK-17519

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Muffler, Super 50 Series, 2 1/2 in. Inlet/Dual 2 1/4 in. Outlet, Steel, Black, Aluminized, Each

Part Number: FLO-525552

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Muffler, OE Replacement, Steel, Aluminized, Chevy, GMC, 4.8, 6.0L, Each

Part Number: APH-2579

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Mufflers-Quiet-Flow

Part Number: WLK-22307

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Estimated Ship Date: Today

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