Audi A4 Catalytic Converters
- MagnaFlow®Direct Fit Catalytic ConverterDirect Fit Catalytic Converter by MagnaFlow®. If your cat needs replacement, install one that will get you through the smog check. The Direct Fit Catalytic Converter is available in Pre-OBD II, OBD II, and OEM Grade OBD II configurations.$143.00 - $5,871.00
- AP Exhaust®Catalytic Converter and Pipe AssemblyCatalytic Converter and Pipe Assembly by AP Exhaust®. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product demand is not based on vehicle age or use but...5-year/50,000-mile warranty on converter body25,000-mile warranty on emissions$136.68 - $1,485.34
- Davico®Direct Fit Catalytic ConverterDirect Fit Catalytic Converter by Davico®. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat fails to perform its job, replacement is the...Helps your vehicle emit harmless gasesDirect OEM replacement$47.28 - $3,735.21
- Torxe™Direct Fit Catalytic ConverterDirect Fit Catalytic Converter by Torxe™. Direct Fit Catalytic converter by Torxe. Replace your clogged, corroded, and malfunctioning catalytic converter for the best possible price with a factory-style unit from Torxe. Fitment is...Replace an old clogged, corroded, and malfunctioning unit and clear your check engine light for goodVehicle-specific fitment is designed around the exact dimensions of your make and model for proper fit and easy installation$138.00 - $572.00
- CATCO®Catalytic Converter and Pipe AssemblyCatalytic Converter and Pipe Assembly by CATCO®. Designed and manufactured with innovative fabrication methods, high-tech materials, and advanced coating, this converter leapfrogs the competition. It delivers unparalleled performance...Packed with the latest technological advancementsWill surpass your expectations for performance$117.42 - $1,552.56
- Eastern Catalytic®ECO III Direct Fit Converter and Pipe AssemblyECO III Direct Fit Converter and Pipe Assembly by Eastern Catalytic®. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed specifically for your vehicle, this catalytic converter...Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor$147.55 - $1,198.22
- MagnaFlow®OEM Grade Direct Fit Catalytic ConverterOEM Grade Direct Fit Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust header/manifold assembly, and it will directly replace...$214.00 - $2,612.00
- iD Select®ECO III Direct Fit Catalytic ConverterECO III Direct Fit Catalytic Converter by iD Select®. Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select. It’s built to OEM specifications to offer the same fit, form, and function as your...Direct OEM replacement for your malfunctioning exhaust partMade to deliver the ultimate in quality, reliability, and value$180.67 - $702.18
- Walker®CalCat™ Direct Fit Catalytic ConverterCalCat™ Direct Fit Catalytic Converter by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust...Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability$209.88 - $2,746.80
- MagnaFlow®Universal Fit Catalytic ConverterUniversal Fit Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This universal fit converter will require some fabrication to be installed, which will involve cutting...$83.00 - $1,906.00
- AP Exhaust®Direct Fit Catalytic ConverterDirect Fit Catalytic Converter by AP Exhaust®. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product demand is not based on vehicle age or use but...5-year/50,000-mile warranty on converter body25,000-mile warranty on emissions$110.03 - $2,814.53
- TruParts®Exhaust System HangerExhaust 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 finest materials in compliance with rigorous industry standards,...Made utilizing the finest materials and equipmentEngineered to restore your vehicle to its pristine condition$0.38 - $357.95
- iD Select®Standard Universal Fit Catalytic ConverterStandard Universal Fit Catalytic Converter by iD Select®. Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select. It’s built to OEM specifications to offer the same fit, form, and function...Direct OEM replacement for your malfunctioning exhaust partMade to deliver the ultimate in quality, reliability, and value$6.47 - $193.39
- Walker®Ultra Direct Fit Catalytic ConvertersUltra Direct Fit Catalytic Converters by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker,...Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability$97.14 - $1,932.38
- Davico®Catalytic Converter and Pipe AssemblyCatalytic Converter and Pipe Assembly by Davico®. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat fails to perform its job, replacement is...Helps your vehicle emit harmless gasesDirect OEM replacement$64.26 - $4,001.73
- iD Select®ECO II Universal Fit Catalytic ConverterECO II Universal Fit Catalytic Converter by iD Select®. Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select. It’s built to OEM specifications to offer the same fit, form, and function...Direct OEM replacement for your malfunctioning exhaust partMade to deliver the ultimate in quality, reliability, and value$112.08 - $146.77
- CATCO®Direct Fit Catalytic ConvertersDirect Fit Catalytic Converters by CATCO®. Designed and manufactured with innovative fabrication methods, high-tech materials, and advanced coating, this converter leapfrogs the competition. It delivers unparalleled performance and...Packed with the latest technological advancementsWill surpass your expectations for performance$135.02 - $983.12
- Walker®Ultra™ Catalytic ConvertersUltra™ Catalytic Converters by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an...Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields$51.79 - $527.78
- Walker®Universal Fit Catalytic ConverterUniversal Fit Catalytic Converter by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an...EPA & CARB Emissions Products Available for Most VehiclesEmission, Structural Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)$139.79 - $2,722.16
- Eastern Catalytic®Direct Fit Catalytic ConverterDirect Fit Catalytic Converter by Eastern Catalytic®. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed specifically for your vehicle, this catalytic converter is a great...Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor$139.23 - $1,149.53
- AP Exhaust®Catalytic ConverterCatalytic Converter by AP Exhaust®. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product demand is not based on vehicle age or use but instead on an...Provides professional installer with immediate installation optionsSpecifically engineered for OBDII equipped vehicles$80.78 - $1,065.65
- CATCO®Universal Fit Catalytic ConvertersUniversal Fit Catalytic Converters by CATCO®. Designed and manufactured with innovative fabrication methods, high-tech materials, and advanced coating, this converter leapfrogs the competition. It delivers unparalleled performance and...Packed with the latest technological advancementsWill surpass your expectations for performance$59.23 - $837.61
- Eastern Catalytic®Converter and Pipe AssemblyConverter and Pipe Assembly by Eastern Catalytic®. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed specifically for your vehicle, this catalytic converter is a great...Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor$102.47 - $941.27
- iD Select®ECO II Direct Fit Catalytic ConverterECO II Direct Fit Catalytic Converter by iD Select®. Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select. It’s built to OEM specifications to offer the same fit, form, and function as...Direct OEM replacement for your malfunctioning exhaust partMade to deliver the ultimate in quality, reliability, and value$90.09 - $688.13
- AP Exhaust®608 Series Universal Fit Catalytic Converters608 Series Universal Fit Catalytic Converters by AP Exhaust®. Three-Way No / Air OBDII by designed US-EPA Compliant catalytic converters are efficient at the oxidation of HC’s and CO, and very efficient at the reduction of NOx,...A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options$137.74 - $368.55
- Eastern Catalytic®ECO II Direct Fit Converter and Pipe AssemblyECO II Direct Fit Converter and Pipe Assembly by Eastern Catalytic®. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed specifically for your vehicle, this catalytic converter...Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor$196.94 - $1,124.91
- Davico®Universal Fit Catalytic ConverterUniversal Fit Catalytic Converter by Davico®. This Universal fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat fails to perform its job, replacement is...Helps your vehicle emit harmless gasesDirect OEM replacement$123.60 - $1,660.15
- CATCO®Select Plus Tech Series Universal Fit Catalytic ConvertersSelect Plus Tech Series Universal Fit Catalytic Converters by CATCO®. Designed and manufactured with innovative fabrication methods, high-tech materials, and advanced coating, this converter leapfrogs the competition. It delivers...Packed with the latest technological advancementsWill surpass your expectations for performance$279.65 - $644.78
- Eastern Catalytic®Universal Fit Catalytic ConverterUniversal Fit Catalytic Converter by Eastern Catalytic®. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you definitely need a new one, and this product is the way to go. Made of stainless...Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output$103.08 - $681.00
- BRExhaust®Catalytic ConverterCatalytic Converter by BRExhaust®. BRExhaust has a comprehensive range of more than 1,000 petrol and diesel catalytic converters, including the latest Euro 4 type-approved units. Manufactured in TUV-certified plants using the latest...Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases$127.22 - $929.13
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Everybody knows that our environment can be negatively affected by harmful exhaust gases from internal combustion engines. A catalytic converter is a device created to control your Audi A4’s emissions in the form of carbon monoxide and hydrocarbons. The chemical reaction takes place within the catalytic converter, or “cat” for short. This reaction is often referred to as “redox,” which stands for reduction-oxidation. When the exhaust heats the spongy precious-metal element inside the steel casing, it starts to catalyze harmful pollutants turning them into less harmful gases.
Since 1975, the use of catalytic converters in the U.S. became a legal requirement on all gasoline-powered autos. Catalytic converters provide a huge service for mother nature while reducing the greenhouse effect thus protecting the environment. Although, catalytic converters, just like all automotive parts, wear out and may get clogged, with such tell-tale signs as poor acceleration, lower fuel efficiency, and harder starts being among some of the most obvious ones. We carry a wide range of high-quality Audi A4 catalytic converters & components offered at an affordable price, so you can easily restore the emission control system of your car.
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