2012 GMC SIERRA-1500 Mufflers

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

Part Number: FLO-953047

4.79 out of 5 stars ( 14 )

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Muffler, FlowFX Series, 3.5 in. Inlet/3.5 in. Outlet, Stainless Steel, Natural, Oval Body, Each

Part Number: FLO-74151

5.0 out of 5 stars ( 5 )

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Muffler, 70 Series Big Block II, Oval, Stainless, 3 in. Center Inlet, 3 in. Offset Outlet, 22 in. Case Length

Part Number: FLO-853072

4.67 out of 5 stars ( 27 )

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Muffler, Performance, Center 3.00 in. Inlet/Dual 2.50 in. Outlet, 14 in. Long Oval Case, 20 in. x 8 in. x 5 in., 409 Stainless Steel, Natural, Each

Part Number: MPE-12198

4.77 out of 5 stars ( 30 )

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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 )

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

Part Number: WLK-17228

3.0 out of 5 stars ( 2 )

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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 ( 2 )

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

Part Number: APH-2539

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Estimated Ship Date: Aug 15, 2025 if ordered today

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Muffler, MSL, Oval, Baffled, Steel, Aluminized, 3.00 in. Inlet/2.75 in. Outlet, 29.00 in. Overall Length, Each

Part Number: APH-700489

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Estimated Ship Date: Aug 13, 2025 if ordered today

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Mufflers, Direct-Fit, 3.00 in. Inlet, 2.75 in. Outlet, Steel, Aluminized, Oval Case, 29.00 in. Overall Length, Chevrolet, GMC, Each

Part Number: BRE-100-7251

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Estimated Ship Date: Aug 18, 2025 if ordered today

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