GMC SIERRA 2500 HD CLASSIC Exhaust

Walker Quiet-Flow Steel 3 Inch Muffler 21522

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: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

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AP Exhaust OE Replacement Steel 3 Inch Muffler 2548

Not Yet Reviewed

Estimated Ship Date: May 11, 2026

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MagnaFlow Universal Catalytic Converters 51759

Catalytic Converter, 3-way Style, Stainless Steel Case, Each

Part Number: MPE-51759

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

Dorman Exhaust Manifold Heat Shields 674-736HS

Exhaust Manifold Heat Shield, Steel, Silver, Chevrolet, GMC, Each

Part Number: RNB-674-736HS

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

AP Exhaust OE Replacement Steel 3 Inch Muffler 2525

AP Exhaust OE Replacement Steel 3 Inch Muffler 2525

Muffler, OE Replacement, Steel, Aluminized, Chevy, GMC, 6.0, 8.1L, Each

Part Number: APH-2525

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

AP Exhaust OE Replacement Steel 3 Inch Muffler X503

3.5 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Dorman Exhaust Manifolds 674-732XD

Ceramic Manifold

Part Number: RNB-674-732XD

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

MBRP Performance Exhaust Exhaust Pipes, Muffler Eliminator Pipes MDS30

Muffler Delete Pipe 4" Inlet /Outlet 30" Overall, T304 Universal Replaces all 30" overall length

Part Number: MBR-MDS30

Not Yet Reviewed

Estimated Ship Date: Jun 29, 2026 if ordered today

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Estimated Ship Date: Jun 29, 2026 if ordered today

ATP Exhaust Manifolds 101371

Exhaust Manifolds, Cast Iron, Natural, Right, Cadillac, Chevrolet, GMC, Hummer, Each

Part Number: ATP-101371

4.0 out of 5 stars ( 1 )

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Walker Exhaust Intermediate Pipes 54878

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

Part Number: WLK-54878

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Pacific Performance Engineering Exhaust Manifolds 116111620

Exhaust Manifolds, High Silicon Cast Iron, Black Ceramic Coated, Includes Stainless Steel Up-pipes, Chevrolet, GMC, 6.6L Diesel, LBZ, Kit

Part Number: PPE-116111620

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Pacific Performance Engineering Exhaust Manifolds 116111635

Manifolds and Up-Pipes GM 2006-2007 Y-Pipe LLY/LBZ - Silver

Part Number: PPE-116111635

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Pacific Performance Engineering Exhaust Manifolds 116111600

Exhaust Manifolds, High Silicon Cast Iron, Natural, Chevy, GMC, 6.6L Diesel, Pair

Part Number: PPE-116111600

Not Yet Reviewed

Estimated Ship Date: May 15, 2026 if ordered today

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Estimated Ship Date: May 15, 2026 if ordered today

Walker Direct-Fit Catalytic Converters 84707

CalCat CARB Catalytic Converter

Part Number: WLK-84707

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

ATP Exhaust Manifolds 101401

Exhaust Manifolds, Cast Iron, Natural, Right, Chevrolet, GMC, Each

Part Number: ATP-101401

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

BRExhaust Direct-Fit Steel 3.5 Inch Muffler 100-7279

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

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converters 4551479

Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Right Position, 32.250 in. Overall Length, Chevrolet, GMC, 6.0L, Each

Part Number: MPE-4551479

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

Walker Exhaust Extension Pipes 53896

Intermediate Pipe, Extension Pipe, 3.50 in. O.D., Steel, Aluminized, Chevy, GMC, Each

Part Number: WLK-53896

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Centerforce Exhaust Heat Shields 11000HS

Flywheel Heat Shield

Part Number: CTF-11000HS

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Pacific Performance Engineering Exhaust Manifolds 116111820

Manifolds and Up-Pipes GM 2007.5-2010 Y-Pipe LMM - Black

Part Number: PPE-116111820

Not Yet Reviewed

Estimated Ship Date: May 15, 2026 if ordered today

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Estimated Ship Date: May 15, 2026 if ordered today

Pacific Performance Engineering Replacement High-Flow Up Pipes 116120710

UP PIPE

Part Number: PPE-116120710

Not Yet Reviewed

Estimated Ship Date: May 15, 2026 if ordered today

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Estimated Ship Date: May 15, 2026 if ordered today

MBRP Armor Lite Series Exhaust Systems S6007P

Aluminized Steel 4" Cat-Back Single Side Exit - with Carb-Approved Downpipe EO# D-763-2

Part Number: MBR-S6007P

Not Yet Reviewed

Estimated Ship Date: Jun 29, 2026 if ordered today

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Estimated Ship Date: Jun 29, 2026 if ordered today

BRExhaust Direct-Fit Exhaust Systems 106-0661

Direct-Fit Exhaust System Replacement Kit

Part Number: BRE-106-0661

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

MagnaFlow Universal Catalytic Converters 5451309

Catalytic Converter, Universal, 12.750 in. Length, 3.00 in. Inlet and Outlet, Each

Part Number: MPE-5451309

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

Dorman Exhaust Manifold Hardware 32109

Exhaust Manifold Hardware, for Flange, 12-Point Bolts w/Integrated Washers, 9.81mm Thread, 10.9 Grade Steel, Black Phosphate Finish, GM, Set of 12

Part Number: RNB-32109

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

aFe Atlas Turbo Downpipes 49-04034

Turbo Downpipe, Steel, Chevy/GMC, 6.6L, Each

Part Number: AFE-49-04034

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

aFe Mach Force XP Turbo Downpipes 49-44034

Exhaust Pipes, Mach Force XP Turbo Downpipes, Stainless Steel, Natural, 3.00 in. Inlet/Outlet, Chevrolet, GMC, 6.6L Diesel, Each

Part Number: AFE-49-44034

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today