1985 GMC Exhaust | Summit Racing

Dorman Exhaust Manifolds 674-245

Exhaust Manifold, OEM Replacement, Cast Iron, Chevy, GMC, 5.0, 5.7L, Passenger Side, Each

Part Number: RNB-674-245

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Hooker Blackheart Intermediate Pipes BH13257

Header Extensions, Blackheart Intermediate Pipes, 2.50 in. Diameter, 2-bolt Flange, Bung, RWD, Chevrolet, GMC, Small Block LS, Pair

Part Number: HOK-BH13257

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Dorman Exhaust Manifolds 674-162

Exhaust Manifold, Cast Iron, Natural, Chevy, GMC, 6.0L, 7.0L, Driver Side, Each

Part Number: RNB-674-162

Not Yet Reviewed

Estimated Ship Date: May 14, 2026 if ordered today

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Estimated Ship Date: May 14, 2026 if ordered today

Hedman Street Headers 69556

Hedman Street Headers 69556

Headers, Street, Mid-Length, Steel, Silver Ceramic Coated, Chevy, GMC, Pair

Part Number: HED-69556

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Walker Heavy-Duty Steel 4 Inch Muffler 22004

Muffler, Heavy-Duty, Oval, Steel, Aluminized, 4.00 in. Offset Inlet/Outlet, 34.00 in. Overall Length, Each

Part Number: WLK-22004

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Hedman Street Headers 69170

Headers, Street, Mid-Length, Steel, Temporary Paint, Chevy, GMC, Big Block, Pair

Part Number: HED-69170

2.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Hedman Street Headers 68603

Headers, Street, Mid-Length, Steel, Black Ceramic Coated, Chevy Small Block, Pair

Part Number: HED-68603

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Hedman Street Headers 69091

Headers, Street, Long Tube, Steel, Temporary Paint, Chevy, GMC, Small Block, Pair

Part Number: HED-69091

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Patriot Full-Length Headers H8049-1

Headers, Long Tube, Steel, Ceramic Coated, Chevy, GMC, SUV, Pickup, 4WD, Small Block, Pair

Part Number: PTE-H8049-1

4.67 out of 5 stars ( 3 )

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

Standard Motor Catalytic Converter Check Valves AV7

Check Valve, AMC, BMW, Buick, Cadillac, Chevy, Chrysler, Dodge, Ford, GMC, Jeep, Oldsmobile, Pontiac, Each

Part Number: SMP-AV7

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Walker Universal Catalytic Converter AIR Tubes 35574

AIR Tube, Steel, Natural, Each

Part Number: WLK-35574

3.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Dorman Exhaust Manifolds 674-278

Exhaust Manifold, Driver Side Only, Cast Iron, Natural, Chevy, GMC, 305, 350, Each

Part Number: RNB-674-278

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Patriot Clippster Headers H8087

Headers, Clippster, Mid-Length, Steel, Natural, Chevy, GMC, LS Swap, Pair

Part Number: PTE-H8087

4.0 out of 5 stars ( 5 )

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

Patriot Full-Length Headers H8054-B

Headers, Long Tube, Steel, Black, 3 in. Collector, SAP Port Shape, Chevy, GMC, 396, 402, 454, Pair

Part Number: PTE-H8054-B

3.0 out of 5 stars ( 2 )

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

Walker Direct-Fit SoundFX Steel 2.5 Inch Muffler 18293

Muffler, SoundFX, Steel, Aluminized, 2.5 in. Inlet, 2.0 in. Outlet, 26.0 in. Length, Each

Part Number: WLK-18293

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

ACDelco Gold Secondary Air Injection Pump Check Valves 19307616

Idle Air Controls, Replacement, AMC, BMW, Chevy, Dodge, GMC, Oldsmobile, Pontiac, Saab, Each

Part Number: ADO-19307616

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Dorman Exhaust Flange Hardware Kits 675-210

Exhaust Flange Hardware - Studs, Springs And Nuts - 3/8-16 x 3.5 In.

Part Number: RNB-675-210

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Sanderson Headers Blockhugger Headers CSLS1-SEC

Headers, Blockhugger,, Steel, Silver Ceramic Coated, Chevy, GMC, LS Swap, Pair

Part Number: SNH-CSLS1-SEC

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Dorman Exhaust Manifolds 674-163

Exhaust Manifold, Cast Iron, Natural, Chevy, GMC, 6.0L, 7.0L, Passenger Side, Each

Part Number: RNB-674-163

Not Yet Reviewed

Estimated Ship Date: May 14, 2026 if ordered today

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Estimated Ship Date: May 14, 2026 if ordered today

Hedman Street Headers 63601

Headers, Street, Mid-Length, Steel, Black Ceramic Coated, Buick, Chevy, Oldsmobile, Pontiac, Small Block, Pair

Part Number: HED-63601

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Dorman Exhaust Flange Hardware Kits 675-217

Exhaust Manifold Hardware, Exhaust Flange Hardware, Bolt/Stud, Kit

Part Number: RNB-675-217

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Patriot Full-Length Headers H8049-B

Headers, Long Tube, Steel, Black, Chevy, GMC, SUV, Pickup, 4WD, Small Block, Pair

Part Number: PTE-H8049-B

3.67 out of 5 stars ( 3 )

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

Flowmaster 40 Series Delta Flow Steel 3 Inch Muffler 9430402

Muffler, Delta Flow 40 Series, 3 in. Inlet/Dual 2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-9430402

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

AP Exhaust Universal Catalytic Converters 609006

Catalytic Converters, Universal, Single 2.50 in. Slip-fit Inlet/Outlet, AIR Tube, 16.50 in. Overall Length, for Nissan, Chevy, Chrysler, Ford, Each

Part Number: APH-609006

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 Hangers 35358

Exhaust hanger, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: WLK-35358

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air