2004 GMC SIERRA 2500 HD Exhaust

Hedman Street Headers 69723

Hedman Street Headers 69723

Headers, Full-Length, Steel, Black Ceramic Coated, Cadillac, Chevrolet, GMC, Pair

Part Number: HED-69723

Not Yet Reviewed

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Pacific Performance Engineering Exhaust Manifolds 116111035

Exhaust Manifolds, High Silicon Cast Iron, Silver Ceramic Coated, Includes Stainless Steel Up-pipes, Chevrolet, GMC, 6.6L Diesel, LB7, Kit

Part Number: PPE-116111035

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

MBRP Installer Series Muffler Delete Pipes MDA531

Muffler Eliminator Pipe, Steel, Aluminized, 5.0 in. Inlet/Outlet, 30 in. Length, Chevy, GMC, Dodge, Ford, Each

Part Number: MBR-MDA531

Not Yet Reviewed

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MagnaFlow Universal Catalytic Converters 51309

Catalytic Converter, Stainless Steel, 3.00 in. Inlet, 3.00 in. Outlet, 15.00 in. Length, Universal, Each

Part Number: MPE-51309

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

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

Flange Manifold 5.3/6.0L CHEVY/GMC Truck Manifold Flange-Drivers 2.500" ID Hole

Part Number: STW-FLCD-2-5

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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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: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Pacific Performance Engineering Replacement High-Flow Up Pipes 116120005

Replacement Up-Pipe (Driver Side) for OEM Exhaust Manifold

Part Number: PPE-116120005

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Flowtech Headers 11143FLT

Headers, Shorty, Steel, Temporary non-high, Temperature Paint, Pair

Part Number: BIG-11143FLT

3.57 out of 5 stars ( 7 )

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

Pacific Performance Engineering Exhaust Manifolds 116111420

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

Part Number: PPE-116111420

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

MBRP Black Series Downpipe Kits GMCA424

Exhaust Pipes, Turbo Downpipes, Black Series Downpipe Kits, Steel, Black, 3.00 in. Inlet/Outlet Diameter, Chevrolet, GMC, 6.6L Diesel, Each

Part Number: MBR-GMCA424

Not Yet Reviewed

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ACDelco Starter Heat Shields 12668713

Shield, Starter, Heat Protection, Stock Replacement, Bolt-On, Buick, Cadillac, Chevrolet, GMC, Hummer, Car, Truck, Each

Part Number: ADO-12668713

Not Yet Reviewed

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AP Exhaust OE Replacement Steel 3 Inch Muffler X504

Muffler, Xlerator Performance, Steel, Aluminized, Chevy, GMC, 6.0, 8.1L, Each

Part Number: APH-X504

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Walker Universal Catalytic Converters 93239

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

Part Number: WLK-93239

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

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MagnaFlow Universal Catalytic Converters 447209

Catalytic Converters, Universal, 3-way, Stainless Steel Case, 3.000 in. Slip Fit Inlet/Outlet, 13.000 in. Overall Length, Each

Part Number: MPE-447209

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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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 18, 2026 if ordered today

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Estimated Ship Date: May 18, 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: Today

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Gibson Headers GP134S-C

Headers, Shorty, Stainless Steel, Ceramic Coated, Chevy, GMC, SUV, Pickup, 8.1L, Pair

Part Number: GIB-GP134S-C

Not Yet Reviewed

Estimated Ship Date: May 26, 2026 if ordered today

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Estimated Ship Date: May 26, 2026 if ordered today

MBRP Armor Lite Series Exhaust Systems S60210P

Exhaust System, Armor Lite, Downpipe Back, Steel, Single Exit, Aluminized, Chevrolet, GMC, Kit

Part Number: MBR-S60210P

Not Yet Reviewed

Estimated Ship Date: Jul 7, 2026 if ordered today

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Estimated Ship Date: Jul 7, 2026 if ordered today

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MBRP PLM Series Exhaust Systems S6005PLM

4 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Flowtech Headers 11142FLT

Headers, Shorty, Steel, Temporary Black Paint, Chevy, GMC, Pair

Part Number: BIG-11142FLT

Not Yet Reviewed

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MagnaFlow Street Series Performance Exhaust Systems 15829

Exhaust, Cat-Back, Stainless Steel, Polished Stainless Tips, Chevy, GMC, Pickup, 6.0L

Part Number: MPE-15829

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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AP Exhaust Extra Heavy-Duty U-Clamps H300

Exhaust Clamps, Extra Heavy-Duty U-Clamps, U-bolt Clamp Style, 0.500 in. Clamp Width, 3.000 in. Pipe Diameter, Steel, Natural, Chevrolet, GMC, Each

Part Number: APH-H300

Not Yet Reviewed

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Dynomax Tailpipes 55509

Tailpipe, Exhaust, Outside Diameter 4.000 in., Stainless Steel, Natural, Chevrolet, GMC, Each

Part Number: WLK-55509

Not Yet Reviewed

Estimated Ship Date: May 28, 2026 if ordered today

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Estimated Ship Date: May 28, 2026 if ordered today

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

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

Part Number: SUM-889505R

Not Yet Reviewed

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AP Exhaust Direct-Fit Catalytic Converters 645783

Catalytic Converters, Direct-Fit, Stock Flange Inlet, 3.00 in. Slip fit Outlet, 88.00 in. Overall Length, Right, Chevrolet, GMC, Each

Part Number: APH-645783

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

Dorman Exhaust Manifolds 674-732XD

Ceramic Manifold

Part Number: RNB-674-732XD

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

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: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today