2003 Nissan Altima Catalytic Converters
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AP Exhaust®Direct Fit Catalytic Converter and Pipe AssemblyNissan Altima 2003, Catalytic Converter and Pipe Assembly by AP Exhaust®. Converter Configuration: Direct Fit. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is...$253.34 - $768.73 - MagnaFlow®Heavy Metal Direct Fit Catalytic ConverterNissan Altima 3.5L 2003, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. If your car needs replacement, install one that will get you through the smog check. This converter will...$419.00 - $434.00
- CATCO®Direct Fit Catalytic Converter and Pipe AssemblyNissan Altima with California Emission / with Federal Emission 2003, Catalytic Converter and Pipe Assembly by CATCO®. Converter Configuration: Direct Fit. Designed and manufactured with innovative fabrication methods, high-tech...$278.47 - $599.72
- Davico®Direct Fit Catalytic Converter and Pipe AssemblyNissan Altima 3.5L 2003, Catalytic Converter and Pipe Assembly by Davico®. Converter Configuration: Direct Fit. Position: Rear. Without O2 Sensor Port. Catalytic Converter Overall Length: 39". This direct-fit catalytic converter by...$311.39 - $1,004.68
- AP Exhaust®Direct Fit Catalytic ConverterNissan Altima 2003, Catalytic Converter by AP Exhaust®. Converter Configuration: Direct Fit. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product demand...$387.26 - $709.29
- Walker®Ultra™ Direct Fit Round Body Catalytic Converter and Pipe AssemblyNissan Altima 3.5L 2003, Ultra™ Catalytic Converter and Pipe Assembly by Walker®. Converter Configuration: Direct Fit. Position: Rear. Catalytic Converter Body Shape: Round. With 2 Inlets. Without O2 Sensor Port. Catalytic Converter...$395.07
- Davico®Direct Fit Catalytic ConverterNissan Altima 3.5L 2003, Catalytic Converter by Davico®. Converter Configuration: Direct Fit. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock...$231.53 - $962.03
- Torxe™Direct Fit Catalytic ConverterNissan Altima 2003, Catalytic Converter by Torxe™. Converter Configuration: Direct Fit. Direct Fit Catalytic converter by Torxe. Replace your clogged, corroded, and malfunctioning catalytic converter for the best possible price with a...$150.00 - $207.50
- Original (OEM)Exhaust PartsThe exhaust system is vital to your engine's health and performance since it is responsible for carrying exhaust gases away from the vehicle. The system has many parts connecting it to the engine. All of them perform a special function...
- Nissan OEExhaust System - Exhaust ComponentsNissan Altima 2003, Exhaust System - Exhaust Components by Nissan OE. Rely on superior-grade Nissan OE parts to maintain your Nissan and keep it in like-new condition for a long time. Made to strict standards of quality using innovative...Genuine Nissan OEM part that offers superior quality and fitmentEngineered and tested to meet all Nissan standards$5.53 - $751.53
- MagnaFlow®Heavy Metal Universal Fit Round Body Catalytic ConverterNissan Altima 3.5L 2003, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Round. Without Air Tube. With Post-Cat O2 Sensor Port. Catalytic Inlet...$182.00
- MagnaFlow®OBDII Universal Fit Oval Body Catalytic ConverterNissan Altima 3.5L with LEV Standard / LEV1 Standard 2003, OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet...$327.00 - $503.00
- MagnaFlow®OEM Grade Universal Fit Round Body Catalytic ConverterNissan Altima 3.5L 2003, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Round. Without Air Tube. With Post-Cat O2 Sensor Port. Catalytic Inlet...$197.00
- Walker®Ultra™ Direct Fit Round Body Catalytic ConverterNissan Altima 3.5L 2003, Ultra™ Catalytic Converter by Walker®. Converter Configuration: Direct Fit. Position: Front Passenger Side. Catalytic Converter Body Shape: Round. With 1 Inlet. With O2 Sensor Port. Catalytic Converter Overall...$442.04
- MagnaFlow®OEM Grade Direct Fit Catalytic ConverterNissan Altima 3.5L 2003, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. If your car needs replacement, install one that will get you through the smog check. This converter is part of...$440.00 - $607.00
- Walker®CalCat™ Universal Fit Round Body Catalytic ConverterNissan Altima 3.5L Engine Family # 3NSXV03.5C7A 2003, CalCat™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Round. With 1 Inlet. Without Air Tube. Without O2...$766.32
- AP Exhaust®Universal Fit Round Body Catalytic ConverterNissan Altima 2003, Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Today’s exhaust performance market continues to cover a...$306.44 - $355.83
- iD Select®ECO III Stainless Steel Exhaust Manifold with Integrated Catalytic ConverterNissan Altima 2.5L 2003, ECO III Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by iD Select®. Position: Front. Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select....Direct OEM replacement for your malfunctioning exhaust partMade to deliver the ultimate in quality, reliability, and value$635.91Save: $63.59 (10%)$572.32
- CATCO®Direct Fit Catalytic ConverterNissan Altima 3.5L with California Emission / Federal Emission 2003, Catalytic Converter by CATCO®. Converter Configuration: Direct Fit. With 1 O2 Sensor Port. Designed and manufactured with innovative fabrication methods, high-tech...$517.64 - $539.23
- Eastern Catalytic®Standard Direct Fit Y-Pipe Catalytic Converter AssemblyNissan Altima 3.5L 2003, Standard Y-Pipe Catalytic Converter Assembly by Eastern Catalytic®. Converter Configuration: Direct Fit. Position: Rear. Location: Undercar. Without O2 Sensor Port. Catalytic Converter Overall Length: 39.25". If...$496.52
- iD Select®ECO III Direct Fit Catalytic ConverterNissan Altima 3.5L 2003, ECO III Catalytic Converter by iD Select®. Converter Configuration: Direct Fit. With 1 O2 Sensor Port. Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select. It’s...$419.59 - $461.20Save: 10%$377.62 - $415.09
- Eastern Catalytic®ECO CARB Direct Fit Catalytic ConverterNissan Altima 3.5L Engine Family # 3NSXV03.5C7A 2003, ECO CARB Catalytic Converter by Eastern Catalytic®. Converter Configuration: Direct Fit. With 1 O2 Sensor Port. Two Way Catalytic. If you need to replace your failed or damaged...$472.91 - $543.49
- Eastern Catalytic®ECO III Direct Fit Catalytic ConverterNissan Altima 3.5L 2003, ECO III Catalytic Converter by Eastern Catalytic®. Converter Configuration: Direct Fit. With 1 O2 Sensor Port. If you need to replace your failed or damaged catalytic converter, this product is the right choice....$400.94 - $458.78
- CATCO®OBDII Universal Fit Round Body Catalytic ConverterNissan Altima with California Emission / with Federal Emission 2003, OBDII Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Designed and manufactured with...$172.60 - $180.71
- BRExhaust®Direct Fit Catalytic Converter and Pipe AssemblyNissan Altima with Federal Emission 2003, Catalytic Converter and Pipe Assembly by BRExhaust®. Converter Configuration: Direct Fit. Position: Rear. If you’re in need of a replacement catalytic converter, you can’t do better than...$311.54 - $343.91
- Dorman®Direct Fit Cylinder Body Catalytic ConverterNissan Altima 3.5L 2003, Catalytic Converter by Dorman®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Cylinder. Without Air Tube. With 1 O2 Sensor Port. More like a complete kit than a single part, many of the...$352.31 - $773.81
- Nissan OEExhaust System - ManifoldNissan Altima 2003, Exhaust System - Manifold by Nissan OE. Rely on superior-grade Nissan OE parts to maintain your Nissan and keep it in like-new condition for a long time. Made to strict standards of quality using innovative technology...Genuine Nissan OEM part that offers superior quality and fitmentEngineered and tested to meet all Nissan standards$5.53 - $751.53
- AP Exhaust®608 Series Universal Fit Round Body Catalytic ConverterNissan Altima 2003, 608 Series Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Round. Without Air Tube. Catalytic Inlet Diameter: 2.25". Catalytic Outlet...$148.97 - $158.08
- TruParts®Exhaust System HangerNissan Altima with California Emission / with Federal Emission 2003, Exhaust System Hanger by TruParts®. Go with this high-quality product to restore your vehicle’s lost power and bring it back to its optimal condition. Made from the...Made utilizing the finest materials and equipmentEngineered to restore your vehicle to its pristine condition$10.11 - $11.01
- CATCO®Select Plus Tech Series OBDII Universal Fit Round Body Catalytic ConverterNissan Altima with California Emission / with Federal Emission 2003, Select Plus Tech Series OBDII Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without...$279.65
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