GMC SIERRA 2500 HD Walker Exhaust Exhaust

Muffler, Heavy Duty, 4 in. Inlet/4 in. Outlet, Stainless Steel, Each

Part Number: WLK-21172

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

Tailpipe, Exhaust, Steel, Aluminized, 3.50 in. O.D., 4.77 ft. Length, Chevy, GMC, 6.0L, 8.1L, Each

Part Number: WLK-55538

4.56 out of 5 stars ( 9 )

Estimated Ship Date: Today

• Oversize $39.99

Catalytic Converter, Universal, Stainless Steel, 2.5 in. Inlet/Outlet, 13.5 in. Length, Each

Part Number: WLK-93238

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Catalytic Converters, Universal, Stainless Steel Case, 3.000 in. Slip Fit Inlet/Outlet, 13.250 in. Overall Length, Each

Part Number: WLK-93239

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Intermediate Pipe, Outside Diameter 3.500 in., Steel, Aluminized, Chevrolet, GMC, Each

Part Number: WLK-54878

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Estimated Ship Date: Jan 6, 2026 if ordered today

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Muffler, Quiet-Flow, Oval, Steel, Aluminized, 3.00 in. Offset Inlet/Outlet, 27.00 in. Overall Length, Each

Part Number: WLK-21522

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 6, 2026 if ordered today

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Tailpipe, Exhaust, Outside Diameter 3.500 in., Steel, Aluminized, Chevrolet, GMC, Each

Part Number: WLK-56267

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Estimated Ship Date: Jan 7, 2026 if ordered today

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Exhaust Pipe, Inside Diameter 3.500 in,, Length 29.000 in., Steel, Aluminized, Chevrolet, GMC, Each

Part Number: WLK-53934

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Estimated Ship Date: Jan 5, 2026 if ordered today

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CalCat CARB Catalytic Converter

Part Number: WLK-84802

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Estimated Ship Date: Jan 6, 2026 if ordered today

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CalCat CARB Catalytic Converter

Part Number: WLK-84806

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Estimated Ship Date: Jan 6, 2026 if ordered today

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CalCat CARB Catalytic Converter

Part Number: WLK-84807

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Estimated Ship Date: Jan 6, 2026 if ordered today

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SoundFX Mofle de escape

Part Number: WLK-27263

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Walker Quiet-Flow SS Muffler

Part Number: WLK-21616

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Exhaust Pipe, Inside Diameter 3.500 in,, Length 37.750 in., Steel, Aluminized, Chevrolet, GMC, Each

Part Number: WLK-54893

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Exhaust Pipe Connector, Inside Diameter 3.500 in,, Length 72.750 in., Steel, Aluminized, Chevrolet, GMC, Each

Part Number: WLK-54894

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Estimated Ship Date: Jan 6, 2026 if ordered today

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Exhaust Pipe, Inside Diameter 3.500 in,, Length 51.500 in., Steel, Aluminized, Chevrolet, GMC, Each

Part Number: WLK-55650

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Estimated Ship Date: Jan 6, 2026 if ordered today

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