$20 Off $250 / $40 Off $500 / $80 Off $1,000 - Use Promo Code: CLASSIC

$20 Off $250 / $40 Off $500 / $80 Off $1,000
Use Promo Code: CLASSIC

Save Now on Select Restoration Parts & Supplies!

Filters

Selected Filters

Filter Results by Vehicle

Loading...

Availability

Dorman

2003 Dorman Exhaust

Showing In Stock Items. Show All 82 Items.

Individual Parts
Part Groups

Results 1 - 25 of 65

Dorman Exhaust Manifolds 674-783

Dorman Exhaust Manifolds 674-783

Dorman Exhaust Manifolds 674-783

Exhaust Manifold, Cast Iron, Ford, 6.8L, V-10, Driver Side, Each

Part Number: RNB-674-783

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Exhaust Manifolds for 2003-2008 RAM 1500, RAM 2500, RAM 3500 - 674-906

Dorman Exhaust Manifolds for 2003-2008 RAM 1500, RAM 2500, RAM 3500 - 674-906

Dorman Exhaust Manifolds for 2003-2008 RAM 1500, RAM 2500, RAM 3500 - 674-906

Exhaust Manifold, OEM Replacement, Cast Iron, Dodge, Chrysler, Each

Part Number: RNB-674-906

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Dorman Exhaust Manifolds 674-729

Dorman Exhaust Manifolds 674-729

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 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Exhaust Manifolds 674-860

Dorman Exhaust Manifolds 674-860

Dorman Exhaust Manifolds 674-860

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

Part Number: RNB-674-860

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Exhaust Manifolds 674-782

Dorman Exhaust Manifolds 674-782

Dorman Exhaust Manifolds 674-782

Exhaust Manifold, Cast Iron, Ford, 6.8L, V-10, Passenger Side, Each

Part Number: RNB-674-782

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Dorman Exhaust Manifolds 674-541

Dorman Exhaust Manifolds 674-541

Dorman Exhaust Manifolds 674-541

Exhaust Manifold, Rear, Steel, Natural, Buick, Chevy, Oldsmobile, Pontiac, 3.8L, Each

Part Number: RNB-674-541

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Dorman Direct-Fit Manifold Catalytic Converters 673-018

Dorman Direct-Fit Manifold Catalytic Converters 673-018

Dorman Direct-Fit Manifold Catalytic Converters 673-018

Manifold Converter

Part Number: RNB-673-018

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Direct-Fit Catalytic Converters for 2001-2005 CIVIC - 673-608

Dorman Direct-Fit Catalytic Converters for 2001-2005 CIVIC - 673-608

Dorman Direct-Fit Catalytic Converters for 2001-2005 CIVIC - 673-608

Manifold Converter

Part Number: RNB-673-608

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Exhaust Manifolds 674-870

Dorman Exhaust Manifolds 674-870

Dorman Exhaust Manifolds 674-870

Exhaust Manifold, Rear, Cast Iron, Natural, Chevy, Oldsmobile, Pontiac, Saturn, 2.2L, Each

Part Number: RNB-674-870

3.0 out of 5 stars ( 3 )

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Direct-Fit Manifold Catalytic Converters for 1999-2005 GRAND VITARA, 2001-2004 TRACKER, 2004 VITARA - 673-617

Dorman Direct-Fit Manifold Catalytic Converters for 1999-2005 GRAND VITARA, 2001-2004 TRACKER, 2004 VITARA - 673-617

Dorman Direct-Fit Manifold Catalytic Converters for 1999-2005 GRAND VITARA, 2001-2004 TRACKER, 2004 VITARA - 673-617

Manifold Converter, Stainless Steel, Natural, Passenger Side, Geo, Suzuki, Each

Part Number: RNB-673-617

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Direct-Fit Manifold Catalytic Converters for 2001-2006 OPTIMA, 1999-2005 SONATA, 2003-2006 TIBURON - 673-630

Dorman Direct-Fit Manifold Catalytic Converters for 2001-2006 OPTIMA, 1999-2005 SONATA, 2003-2006 TIBURON - 673-630

Dorman Direct-Fit Manifold Catalytic Converters for 2001-2006 OPTIMA, 1999-2005 SONATA, 2003-2006 TIBURON - 673-630

Manifold Converter, Cast Iron, Natural, Rear, Hyundai, Kia, Each

Part Number: RNB-673-630

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Direct-Fit Manifold Catalytic Converters for 2002-2003 CAMRY, SOLARA - 673-811

Dorman Direct-Fit Manifold Catalytic Converters for 2002-2003 CAMRY, SOLARA - 673-811

Dorman Direct-Fit Manifold Catalytic Converters for 2002-2003 CAMRY, SOLARA - 673-811

Manifold Converter, Stainless Steel, Natural, Toyota, Each

Part Number: RNB-673-811

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Direct-Fit Manifold Catalytic Converters for 2002-2006 CAMRY, 2002-2003 ES300 - 673-882

Dorman Direct-Fit Manifold Catalytic Converters for 2002-2006 CAMRY, 2002-2003 ES300 - 673-882

Dorman Direct-Fit Manifold Catalytic Converters for 2002-2006 CAMRY, 2002-2003 ES300 - 673-882

Manifold Converter, Stainless Steel, Natural, Front, Lexus, Toyota, Each

Part Number: RNB-673-882

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Secondary Air Injection Pumps 306-023

Dorman Secondary Air Injection Pumps 306-023

Dorman Secondary Air Injection Pumps 306-023

Air Injection Pump, Secondary, Electric, Mercedes-Benz, Each

Part Number: RNB-306-023

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Direct-Fit Manifold Catalytic Converters for 2002 FRONTIER, 2002-2004 XTERRA - 673-816

Dorman Direct-Fit Manifold Catalytic Converters for 2002 FRONTIER, 2002-2004 XTERRA - 673-816

Dorman Direct-Fit Manifold Catalytic Converters for 2002 FRONTIER, 2002-2004 XTERRA - 673-816

Catalytic Converter, Direct-Fit, Stock Flange, for Nissan, Left, Each

Part Number: RNB-673-816

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Direct-Fit Manifold Catalytic Converters 674-018

Dorman Direct-Fit Manifold Catalytic Converters 674-018

Dorman Direct-Fit Manifold Catalytic Converters 674-018

Catalytic Converter with Integrated Exhaust Manifold, Manifold Converter - Not Carb Compliant - Not For Sale -

Part Number: RNB-674-018

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Direct-Fit Manifold Catalytic Converters 674-618

Dorman Direct-Fit Manifold Catalytic Converters 674-618

Dorman Direct-Fit Manifold Catalytic Converters 674-618

Catalytic Converter, Direct-Fit, Chevy, Suzuki, Driver Side, Kit

Part Number: RNB-674-618

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Exhaust Manifolds 674-872

Dorman Exhaust Manifolds 674-872

Dorman Exhaust Manifolds 674-872

Exhaust Manifold, OEM Replacement, Cast Iron, Dodge, Each

Part Number: RNB-674-872

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Exhaust Manifolds for 1998-2005 LAND CRUISER, LX470 - 674-104

Dorman Exhaust Manifolds for 1998-2005 LAND CRUISER, LX470 - 674-104

Dorman Exhaust Manifolds for 1998-2005 LAND CRUISER, LX470 - 674-104

Exhaust Manifold, Stainless Steel, Natural, Each

Part Number: RNB-674-104

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Exhaust Manifolds for 2002-2006 ALTIMA - 674-934

Dorman Exhaust Manifolds for 2002-2006 ALTIMA - 674-934

Dorman Exhaust Manifolds for 2002-2006 ALTIMA - 674-934

Exhaust Manifold, OEM Replacement, Cast Iron, Nissan, Each

Part Number: RNB-674-934

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Exhaust Manifolds for 2003-2006 ALTIMA - 674-935

Dorman Exhaust Manifolds for 2003-2006 ALTIMA - 674-935

Dorman Exhaust Manifolds for 2003-2006 ALTIMA - 674-935

Exhaust Manifold, OEM Replacement, Cast Iron, Nissan, Each

Part Number: RNB-674-935

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Exhaust Manifolds for 2003-2005 6 - 674-936

Dorman Exhaust Manifolds for 2003-2005 6 - 674-936

Dorman Exhaust Manifolds for 2003-2005 6 - 674-936

Exhaust Manifold, OEM Replacement, Stainless Steel, Mazda, Each

Part Number: RNB-674-936

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Direct-Fit Manifold Catalytic Converters 674-849

Dorman Direct-Fit Manifold Catalytic Converters 674-849

Dorman Direct-Fit Manifold Catalytic Converters 674-849

Catalytic Converter, Stainless Steel, for use on Acura®, Honda®, Saturn, Rear, Each

Part Number: RNB-674-849

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Direct-Fit Manifold Catalytic Converters 674-850

Dorman Direct-Fit Manifold Catalytic Converters 674-850

Dorman Direct-Fit Manifold Catalytic Converters 674-850

Catalytic Converter, Stainless Steel, for use on Acura®, Honda®, Saturn, Front, Each

Part Number: RNB-674-850

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Dorman Direct-Fit Manifold Catalytic Converters 674-882

Dorman Direct-Fit Manifold Catalytic Converters 674-882

Dorman Direct-Fit Manifold Catalytic Converters 674-882

Catalytic Converter, Direct-Fit, Stock Flange, Lexus, Toyota, Kit

Part Number: RNB-674-882

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.

Summit Racing Speedcard. Synchrony Car Care.

Summit Racing Equipment SpeedCard

Jumpstart Your Next Project!

View Details|See if you Prequalify