2004 GMC Mufflers & Resonators

Muffler, Quiet-Flow Series, 2.500 in., Inlet, 2.500 in. Outlet, Buick, Chevy, GMC, Olds, L6, Each

Part Number: WLK-21409

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 30, 2026 if ordered today

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Walker Quiet-Flow SS Muffler

Part Number: WLK-21551

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Walker Quiet-Flow SS Muffler

Part Number: WLK-21553

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Estimated Ship Date: Mar 30, 2026 if ordered today

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Walker Quiet-Flow SS Muffler

Part Number: WLK-21554

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Estimated Ship Date: Mar 30, 2026 if ordered today

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

Part Number: APH-2578

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Estimated Ship Date: Mar 24, 2026 if ordered today

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