2020 GMC Mufflers & Resonators

Muffler, Super 50 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Aluminized, Each

Part Number: FLO-53056

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Muffler, 40 Series, 3 in. Inlet/3 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-8043041

4.73 out of 5 stars ( 11 )

Estimated Ship Date: Today

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

Part Number: FLO-53071

4.55 out of 5 stars ( 20 )

Estimated Ship Date: Today

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Muffler, FlowFX, 3.50 in. Inlet, 3.50 in. Outlet, 409 Stainless Steel, Natural, Center Inlet, Center Outlet, Chevy, GMC, 6.6L/401 Engine, Each

Part Number: FLO-718155

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Mufflers, Apollo GT, 409 Stainless Steel, Muffler Upgrade, 3 in. Pipe, Chevy, GMC, Kit

Part Number: AFE-49C44121

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Muffler, Secondary Muffler, S-Type Sound, Chevy, GMC, 6.2L, Each

Part Number: BOR-60679

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Muffler, Super 40 Series, Oval, Stainless, Offset 3.0 in. Inlet, Center 3.0 in. Outlet, 13.5 in. Case Length

Part Number: FLO-853046

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Muffler, Ultra Flo Welded, 3 in. Inlet/3 in. Outlet, Stainless Steel, Each

Part Number: WLK-17233

4.7 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Muffler, Quiet-Flow SS, Oval, Stainless Steel, Natural, 2.25 in. Offset Inlet/Outlet, 19.00 in. Overall Length, Each

Part Number: WLK-21690

4.14 out of 5 stars ( 7 )

Estimated Ship Date: Today

Muffler, FlowFX, Active Dual Mode, Direct Fit, Chevrolet, GMC, 5.3L, Each

Part Number: FLO-717911

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

Part Number: AFE-49C44137

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Muffler, Ultra Flo Welded, 3 in. Inlet/3 in. Outlet, Stainless Steel, Each

Part Number: WLK-17547

4.57 out of 5 stars ( 7 )

Estimated Ship Date: Today

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• $10 Summit Bucks on $100 spent*

Polyphonic Harmonizer, Secondary Muffler, ATAK Sound, Chevy, GMC, 6.2L, Each

Part Number: BOR-60680

5.0 out of 5 stars ( 2 )

Estimated Ship Date: 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

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Muffler, 3.50 in. Inlet/3.50 in. Outlet, Stainless Steel, Natural, Chevy, GMC, Kit

Part Number: MPE-19534

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Direct-Fit Muffler Replacement Kit With Muffler

Part Number: MPE-19533

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Estimated Ship Date: May 18, 2026 if ordered today

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Walker Quiet-Flow SS Muffler

Part Number: WLK-21614

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Estimated Ship Date: Today

Exhaust Muffler Delete Pipe, 409 Stainless Steel, 3 in., Chevy, GMC, Each

Part Number: AFE-49C44114NM

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jun 1, 2026 if ordered today

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Mufflers-Quiet-Flow SS

Part Number: WLK-22240

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Estimated Ship Date: May 28, 2026 if ordered today

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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: Jun 1, 2026 if ordered today

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Pipe-Resonator Assembly

Part Number: WLK-55728

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Estimated Ship Date: May 28, 2026 if ordered today

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Muffler 09-14 Express / Savanna 1500 4.3L/5.3L 10-17 Express / Savana 2500 4.8L/6.0L

Part Number: APH-2650

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Estimated Ship Date: May 18, 2026 if ordered today

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Muffler, Quiet-Flow SS, Oval, Stainless Steel, Natural, Chevy, GMC, Each

Part Number: WLK-21759

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Estimated Ship Date: Today

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Pipe-Resonator Assembly

Part Number: WLK-55724

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Estimated Ship Date: May 28, 2026 if ordered today

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2.50" Uni. Ford 8617 Mid-Bed Series

Part Number: MPE-51366

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

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