2004 GMC SIERRA 2500 HD Exhaust - In Stock Filter Options - Vendor In Stock Filter Options

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: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

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AP Exhaust OE Replacement Steel 3 Inch Muffler X503

3.5 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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aFe Twisted Steel Turbo Up Pipes 48-34009

Exhaust Turbo Up-Pipe, Stainless Steel, Natural, Chevrolet, GMC, 6.6L, Kit

Part Number: AFE-48-34009

Not Yet Reviewed

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

Summit Racing™ Spark Plug Boot Heat Shields SUM-889505BL

Heat Protection, Spark Plug Boot Heat Shields, Heat Resistant Polyimide Film Insert, Straight, Aluminum, Blue, 2 3/8 in. Long, LS/LT, Set of 8

Part Number: SUM-889505BL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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MagnaFlow Universal Spun Catalytic Converters 99659HM

Catalytic Converter, Stainless Steel, Universal, 3.0 in. Inlet/Outlet, 8.00 in. Length, Each

Part Number: MPE-99659HM

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Stainless Works 3-Bolt 2.5 Inch Exhaust Flange FLCP-2.5

Exhaust Flange, 2-Bolt, Stainless Steel, Natural, 2.50 in. Diameter, Chevrolet, GMC, Each

Part Number: STW-FLCP-2-5

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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MagnaFlow Turbo Downpipes 15399

Exhaust Pipe

Part Number: MPE-15399

Not Yet Reviewed

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Dorman Exhaust Manifold Heat Shields 674-522HS

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

Part Number: RNB-674-522HS

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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BD Diesel Exhaust Pipes, Turbo Up Pipes 1043803

Up-Pipe, Passenger Side - Chevy 2001-2004 LB76.6L Duramax

Part Number: BDD-1043803

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Walker Quiet-Flow Steel 3 Inch Muffler 22307

Mufflers-Quiet-Flow

Part Number: WLK-22307

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Dorman Exhaust Manifolds 674-729

Exhaust Manifold, OEM Replacement, Cast Iron, Chevy, GMC, Each

Part Number: RNB-674-729

Not Yet Reviewed

Estimated Ship Date: Feb 24, 2026 if ordered today

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Estimated Ship Date: Feb 24, 2026 if ordered today

Walker Ultra Direct-Fit Catalytic Converters 55557

Catalytic Converter, Direct-Fit, Stainless Steel, Each

Part Number: WLK-55557

Not Yet Reviewed

Estimated Ship Date: Feb 26, 2026 if ordered today

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Estimated Ship Date: Feb 26, 2026 if ordered today

MBRP Black Series Downpipe Kits GM8425

Turbocharger Down Pipe, Steel, Black Powdercoated, Chevy, GMC, 6.6L, Kit

Part Number: MBR-GM8425

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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ATP Exhaust Manifolds 101261

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

Part Number: ATP-101261

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Pacific Performance Engineering Exhaust Manifolds 116111400

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

Part Number: PPE-116111400

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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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: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Dorman Exhaust Manifold Mounting Hardware 32114

Exhaust Manifold Mounting Hardware, Bolt/Washer Hardware Type, Steel, Natural, Chevrolet, GMC, Hummer, Workhorse, Workhorse Custom Chassis, Kit

Part Number: RNB-32114

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Dorman Exhaust Manifolds 674-728

Exhaust Manifold, OEM Replacement, Cast Iron, Chevy, GMC, Each

Part Number: RNB-674-728

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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AP Exhaust Max Fit Tailpipes 127671

Tail Pipe, Max Fit, 2.500 in., Steel, Aluminized, Chevy, GMC, Passenger Side, Each

Part Number: APH-127671

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Mishimoto Titanium Turbo Blankets MMTB-DMAX-05

Turbo Heat Shields, Titanium Blanket, Stock Turbo, Wraparound Installation, Chevy, GMC, Duramax, 6.6L, Each

Part Number: MIO-MMTB-DMAX-05

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

MagnaFlow Direct-Fit Catalytic Converters 93480

Catalytic Converter, Stainless Steel, Direct-Fit, GM, Each

Part Number: MPE-93480

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

aFe Large Bore-HD Exhaust Systems 49-14001

Exhaust System, Large Bore HD, Cat-Back, Steel, Natural, Chevy, GMC, 6.6L, Duramax Diesel, Kit

Part Number: AFE-49-14001

Not Yet Reviewed

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

Walker Ultra Direct-Fit Catalytic Converters 53726

Catalytic Converter, Ultra Direct Fit, Stock Flange Inlet, Slip Fit Outlet, Ceramic Honeycomb, Heat Flange, Chevrolet, GMC, Each

Part Number: WLK-53726

Not Yet Reviewed

Estimated Ship Date: Feb 24, 2026 if ordered today

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Estimated Ship Date: Feb 24, 2026 if ordered today

MBRP Installer Series Exhaust Systems S6000AL

Exhaust System, Installer Series, Cat-Back, Steel, Passenger Side Exit, Aluminized, Polished Tip, Chevy/GMC, Duramax, Kit

Part Number: MBR-S6000AL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

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MBRP Performance Series Exhaust Systems S6000P

4 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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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: Feb 24, 2026 if ordered today

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Estimated Ship Date: Feb 24, 2026 if ordered today

AP Exhaust Max Fit Tailpipes 127670

Tail Pipe, Max Fit, 2.500 in., Steel, Aluminized, Chevy, GMC, Driver Side, Each

Part Number: APH-127670

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today