2003 CADILLAC Exhaust | Summit Racing

Walker Tailpipes 54382

Tailpipe, Exhaust, Outside Diameter 2.625 in., Steel, Aluminized, Cadillac, Chevrolet, GMC, Each

Part Number: WLK-54382

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Dorman Exhaust Manifolds 674-522XD

Ceramic Manifold, GENERAL MOTORS 2020-99

Part Number: RNB-674-522XD

Not Yet Reviewed

Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

AP Exhaust Universal Catalytic Converters 608227

AP Exhaust Universal Catalytic Converters 608227

Catalytic Converters, Universal, Single 3.00 in. Slip-fit Inlet/Outlet, AIR Tube, Stainless Steel Case, 16.50 in. Overall Length, Chevy, GMC, Each

Part Number: APH-608227

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

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 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Hedman Street Headers 69683

Headers, Street, Shorty, Steel, Black Ceramic Coated, Cadillac, Chevy, GMC, Pair

Part Number: HED-69683

Not Yet Reviewed

Estimated Ship Date: Jul 3, 2026 if ordered today

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Estimated Ship Date: Jul 3, 2026 if ordered today

Walker Quiet-Flow SS 409 Stainless Steel 2.5 Inch Muffler 21431

Mufflers, Quiet-Flow SS, Stainless Steel, Aluminized, 28.000 in. Overall Length, Cadillac, GMC, Hummer, Each

Part Number: WLK-21431

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

AP Exhaust Extra Heavy-Duty U-Clamps H212

Exhaust Clamp, U-Bolt, 2.50 in. Diameter, Steel, Natural, Each

Part Number: APH-H212

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

ATP Exhaust Manifolds 101262

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

Part Number: ATP-101262

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

JBA Performance Exhaust X, H, and Y-Pipes for 1999-2006 ESCALADE, 2003-2006 ESCALADE ESV, 2002-2006 ESCALADE EXT - 6850SY

Exhaust Crossover Pipes, Y-pipe Style, 409 Stainless Steel, Natural, 3.000 in. Diameter, for Use with JBA Long Tube Headers, Cadillac, Each

Part Number: JBA-6850SY

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

AP Exhaust Extra Heavy-Duty U-Clamps H218

Exhaust Clamp, Extra Heavy-Duty U-Clamp, 2.125 in. Pipe, 0.50 in. Width, Steel, Natural, Each

Part Number: APH-H218

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

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: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Walker Direct-Fit SoundFX Steel 2.63 Inch Muffler 18957

Mufflers, Direct Fit SoundFX, Steel, Aluminized, 28.000 in. Overall Length, Cadillac, Chevy, GMC, Each

Part Number: WLK-18957

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Walker Quiet-Flow 3 Steel 2.63 Inch Muffler 21423

Muffler, Quiet-Flow 3, 2.625 in. Inlet/Outlet, Steel, Aluminized, Chevy, GMC, Each

Part Number: WLK-21423

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Catco Federal/EPA Direct-Fit Catalytic Converters 9444

EPA OBDII Direct Fit Converter

Part Number: CTO-9444

1.0 out of 5 stars ( 1 )

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

BRExhaust Direct-Fit Steel 2.5 Inch Muffler 100-7179

Mufflers, Direct-Fit, 2.50 in. Dual Inlet, 2.50 in. Single Outlet, Steel, Aluminized, Oval Case, 28.00 in. Overall Length, Cadillac, GMC, Hummer, Each

Part Number: BRE-100-7179

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

MagnaFlow Universal Catalytic Converters 99204HM

Catalytic Converters, Universal, 3-way, Stainless Steel Case, 2.000 in. Slip Fit Inlet/Outlet, 13.000 in. Overall Length, Each

Part Number: MPE-99204HM

3.0 out of 5 stars ( 2 )

Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Standard Motor Air Pumps for 2000-2004 SEVILLE, DEVILLE, 2001-2003 AURORA - AIP19

Air Pump, Replacement, Electric, Cadillac, Each

Part Number: SMP-AIP19

Not Yet Reviewed

Estimated Ship Date: May 6, 2026 if ordered today

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Estimated Ship Date: May 6, 2026 if ordered today

Walker Tailpipes 55321

Tailpipe, Exhaust, Outside Diameter 2.625 in., Steel, Aluminized, Cadillac, GMC, Each

Part Number: WLK-55321

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 Intermediate Pipes 54193

Not Yet Reviewed

Estimated Ship Date: May 7, 2026

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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: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

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

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 1, 2026 if ordered today

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Estimated Ship Date: May 1, 2026 if ordered today

Walker Quiet-Flow SS 409 Stainless Steel 1.88 Inch Muffler 53402

Walker Quiet-Flow SS Muffler Assembly

Part Number: WLK-53402

3.0 out of 5 stars ( 2 )

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 2 Inch Muffler 2221

Not Yet Reviewed

Estimated Ship Date: May 7, 2026

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Walker Quiet-Flow SS 409 Stainless Steel 1.88 Inch Muffler 53400

Walker Quiet-Flow SS Muffler Assembly

Part Number: WLK-53400

5.0 out of 5 stars ( 3 )

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 2 Inch Muffler 2221

Not Yet Reviewed

Estimated Ship Date: May 7, 2026

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AP Exhaust Universal Catalytic Converters 608265

Catalytic Converters, Universal, 2.25 in. Slip Fit Inlet/Outlet, Stainless Steel Case, Ceramic Honeycomb Substrate, 14.00 in. Overall Length, Each

Part Number: APH-608265

Not Yet Reviewed

Estimated Ship Date: May 6, 2026 if ordered today

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Estimated Ship Date: May 6, 2026 if ordered today

Walker Exhaust Intermediate Pipes for 2002-2005 ESCALADE, 2001-2006 TAHOE, 2001-2005 YUKON - 52275

Intermediate Pipe, Outside Diameter 2.625 in., Steel, Aluminized, Cadillac, Chevrolet, GMC, Each

Part Number: WLK-52275

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 Intermediate Pipes 28707

Not Yet Reviewed

Estimated Ship Date: May 7, 2026

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