2003 Infiniti QX4 Catalytic Converters
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MagnaFlow®Heavy Metal Direct Fit Catalytic ConverterInfiniti QX4 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 directly...$328.00 - $441.00 - Davico®Direct Fit Catalytic ConverterInfiniti QX4 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 cat...$252.59 - $320.36
- MagnaFlow®OEM Grade Direct Fit Catalytic ConverterInfiniti QX4 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 the...$344.00 - $463.00
- iD Select®ECO II Universal Fit Oval Body Catalytic ConverterInfiniti QX4 2003, ECO II Catalytic Converter by iD Select®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic Outlet...$112.08
- Walker®CalCat™ Direct Fit Round Body Catalytic ConverterInfiniti QX4 Engine Family # 3NSXT03.5C7A 2003, CalCat™ Catalytic Converter by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. Without O2 Sensor Port. Catalytic Converter Overall...$782.73 - $864.65
- MagnaFlow®Heavy Metal Universal Fit Catalytic ConverterInfiniti QX4 2003, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic Outlet Diameter: 2". If your car needs a new...$178.00 - $222.00
- MagnaFlow®OBDII Universal Fit Oval Body Catalytic ConverterInfiniti QX4 Engine Family # 3NSXT03.5C7A 2003, OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter:...$554.00
- MagnaFlow®OEM Grade Universal Fit Catalytic ConverterInfiniti QX4 2003, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic Outlet Diameter: 2". If your car needs a new...$194.00 - $231.00
- AP Exhaust®Direct Fit Catalytic ConverterInfiniti QX4 2003, Catalytic Converter by AP Exhaust®. Converter Configuration: Direct Fit. Without Air Tube. Without O2 Sensor Port. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique...$327.48 - $347.77
- TruParts®Exhaust System HangerInfiniti QX4 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$5.85
- Walker®Ultra™ Direct Fit Catalytic ConverterInfiniti QX4 2003, Ultra™ Catalytic Converter by Walker®. Converter Configuration: Direct Fit. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an industry leader, for the finest emission control...$300.14 - $355.76
- Davico®Direct Fit Catalytic Converter and Pipe AssemblyInfiniti QX4 2003, Catalytic Converter and Pipe Assembly by Davico®. Converter Configuration: Direct Fit. Position: Rear Passenger Side. Catalytic Converter Overall Length: 24.75". This direct-fit catalytic converter by Davico will be a...$318.56
- iD Select®Standard Direct Fit Catalytic Converter and Pipe AssemblyInfiniti QX4 2003, Standard Catalytic Converter and Pipe Assembly by iD Select®. Converter Configuration: Direct Fit. Location: Undercar. With 1 O2 Sensor Port. Swap out your worn-out or malfunctioning part with this top-notch exhaust...$286.27 - $310.54
- Eastern Catalytic®ECO II Direct Fit Pre-Cat Catalytic ConverterInfiniti QX4 2003, ECO II Pre-Cat Catalytic Converter by Eastern Catalytic®. Converter Configuration: Direct Fit. Without O2 Sensor Port. If you need to replace your failed or damaged catalytic converter, this product is the right...$337.28 - $347.10
- Eastern Catalytic®Standard Direct Fit Catalytic ConverterInfiniti QX4 2003, Standard Catalytic Converter by Eastern Catalytic®. Converter Configuration: Direct Fit. Location: Undercar. With 1 O2 Sensor Port. If you need to replace your failed or damaged catalytic converter, this product is...$286.67 - $299.19
- CATCO®Direct Fit Catalytic ConverterInfiniti QX4 2003, Catalytic Converter by CATCO®. Converter Configuration: Direct Fit. Without O2 Sensor Port. Designed and manufactured with innovative fabrication methods, high-tech materials, and advanced coating, this converter...$437.36 - $477.04
- iD Select®ECO II Direct Fit Pre-Cat Catalytic ConverterInfiniti QX4 2003, ECO II Pre-Cat Catalytic Converter by iD Select®. Converter Configuration: Direct Fit. Without O2 Sensor Port. Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select. It’s...$340.39 - $350.30
- Dorman®Direct Fit Cylinder Body Catalytic ConverterInfiniti QX4 2003, Catalytic Converter by Dorman®. Converter Configuration: Direct Fit. Position: Front Driver Side. Catalytic Converter Body Shape: Cylinder. With 6 Air Tubes. Without O2 Sensor Port. Catalytic Converter Overall Length:...$399.42
- Eastern Catalytic®ECO II Universal Fit Oval Body Catalytic ConverterInfiniti QX4 2003, ECO II Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic Outlet...$151.39
- 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...
- Infiniti OEExhaust System - Exhaust ComponentsInfiniti QX4 2003, Exhaust System - Exhaust Components by Infiniti OE. Maintain the level of performance you and your Infiniti deserve with Infiniti OE parts. Made to strict quality standards and original specifications, genuine Infiniti...Genuine OE parts that match the quality and function you expect from InfinitiDesigned to restore and maintain the exceptional look and feel of your vehicle$3.13 - $1,318.49
- HJS®Catalytic Converter GasketInfiniti QX4 2003, Catalytic Converter Gasket by HJS®. Location: Catalytic Converter Outlet - Header Pipe Inlet. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology...High quality at an affordable priceExpertly made from premium materials$2.60
- iD Select®ECO II Universal Fit Catalytic ConverterUniversal ECO II Catalytic Converter by iD Select®. Converter Configuration: Universal Fit. Catalytic Converter Overall Length: 16". Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select....$144.22 - $146.77
- AP Exhaust®Enhanced Standard Duty Universal Fit Oval Body Catalytic ConverterUniversal Enhanced Standard Duty Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without O2 Sensor Port. Catalytic Converter Overall Length: 16". Today’s exhaust...$90.57 - $125.57
- AP Exhaust®Universal Fit Round Body Catalytic ConverterUniversal Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The...$232.31 - $339.18
- Eastern Catalytic®Universal Fit Large Oval Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. Catalytic Converter Overall Length: 16". Whether your catalytic converter is damaged by road debris...$155.38 - $255.04
- Eastern Catalytic®Universal Fit Oval Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you...$118.45 - $187.70
- Eastern Catalytic®Universal Fit Round Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you...$129.11 - $178.82
- Walker®Ultra™ Universal Fit Catalytic ConverterUniversal Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. This part features the correct load of precious metals to ensure the proper limitation of tailpipe emissions. It meets the EPA policy and...$100.00 - $285.30
- Torxe™Universal Fit Catalytic ConverterUniversal Catalytic Converter by Torxe™. Converter Configuration: Universal Fit. Catalytic Inlet Diameter: 2". Universal Fit Catalytic Converter by Torxe. Replace your clogged, corroded, and malfunctioning catalytic converter for the...$108.00 - $175.00
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