GMC SIERRA 2500 HD Mufflers

Muffler, 50 Series Heavy-Duty, Oval, Stainless, Black, 3.5 in. Offset Inlet/Outlet, 18 in. Case Length, Each

Part Number: FLO-853558

5.0 out of 5 stars ( 3 )

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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Muffler, Big Block 50 Series, Dual 3 in. Inlet/3 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-530513

4.43 out of 5 stars ( 23 )

Estimated Ship Date: Today

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Muffler, Quiet-Flow, Round, Steel, Aluminized, Chevy, GMC, Each

Part Number: WLK-21753

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Muffler, dB Series, Stainless Steel, Chevy, GMC, Pickup, GM, Duramax 6.2/6.5/6.6L, Each

Part Number: CSE-8004000

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Jan 19, 2026 if ordered today

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Muffler, Monster Muffler, Stainless Steel, Polished, Round Case, Single Exit, 4.00 in. Inlet, 4.00 in. Outlet, 36 in. Long, Each

Part Number: GBE-53801

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Feb 2, 2026 if ordered today

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Mufflers, Muffler - CHALLENGE

Part Number: APH-2644

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Mufflers, Direct-Fit, 3.50 in. Inlet/Outlet, Steel, Aluminized, Oval Case, 31.00 in. Overall Length, Chevrolet, GMC, Each

Part Number: BRE-100-7279

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Estimated Ship Date: Dec 26, 2025 if ordered today

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Muffler, Monster Muffler, Stainless Steel, Polished, Round Case, Single Exit, Center, 3.50 in., 3.50 in., 30.00 in. Long, Each

Part Number: GBE-54008

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Muffler, Monster Muffler, Stainless Steel, Polished, Round Case, Single Exit, 4.00 in. Inlet, 4.00 in. Outlet, 28 in. Long, Each

Part Number: GBE-53800

5.0 out of 5 stars ( 1 )

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