Audi Catalytic Converters & Components

Show items:
Sort by:
    • (7 reviews)
      # sp4602
      Catalytic Converter by Bosal®. Bosal 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 high-spec...
      $58.27 - $449.37
    • (6 reviews)
      # sp4294
      Direct Fit Catalytic Converter by Eastern®. 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 alternative to...
      $36.15 - $539.91
    • (6 reviews)
      # sp93964
      Direct Fit Catalytic Converter by AP Exhaust®. The growing concern for the environment means there is a growing need for quality emission control products. AP catalysts and catalytic convert systems can be found in a vast array of...
      $56.49 - $629.79
    • (11 reviews)
      # sp13664
      Direct 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...
      $29.46 - $1,239.25
    • (5 reviews)
      # sp92788
      Direct Fit Catalytic Converter by DEC®. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are made from a heavy duty stainless steel outer shell which...
      $138.52 - $835.38
    • (4 reviews)
      # sp110016
      Direct Fit Catalytic Converter with Integrated Manifold by PaceSetter®. PaceSetter Manifold Catalytic Converters are custom-engineered to deliver maximum performance and efficiency from your engine with durability and ease of...
      $133.54 - $615.06
    • (0 reviews)
      # sp107600
      Exhaust Manifold with Integrated Catalytic Converter by Davico®. This product 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...
      $143.46 - $630.90
    • (0 reviews)
      # sp4295
      Universal Fit Catalytic Converter by Eastern®. 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 steel, the...
      $33.45 - $245.69
    • (2 reviews)
      # sp18944
      Direct Fit Catalytic Converter by PaceSetter®. CARB Compliant: No. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Stainless Steel. Custom Engineered to deliver maximum performance and...
      $85.57 - $474.75
    • (5 reviews)
      # sp128212
      CalCat Catalytic Converter and Pipe Assembly 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...
      $152.66 - $855.80
    • (0 reviews)
      # sp128213
      CalCat Direct Fit Catalytic Converter (California Legal) by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle...
      $122.02 - $574.16
    • (13 reviews)
      # sp10058
      Ultra™ 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...
      $76.47 - $561.78
    • (1 review)
      # sp10059
      Ultra™ Universal 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...
      $53.64 - $120.19
    • (5 reviews)
      # sp4304
      Universal 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...
      $60.48 - $259.91
    • (6 reviews)
      # sp128225
      Catalytic Converter and Pipe Assembly by Bosal®. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading supplier to vehicle manufacturers and use advanced manufacturing techniques...
      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
      $79.19 - $840.55
    • (3 reviews)
      # sp128204
      Converter and Pipe Assembly by Eastern®. 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 alternative to a...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $75.25 - $746.73
    • (0 reviews)
      # sp128205
      ECO CARB Direct Fit Converter and Pipe Assembly by Eastern®. 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...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $160.11 - $1,079.73
    • (4 reviews)
      # sp128207
      ECO II Direct Fit Converter and Pipe Assembly by Eastern®. 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
      $106.25 - $563.99
    • (7 reviews)
      # sp106571
      ECO II Universal Fit Undercar Catalytic Converter by Eastern®. Focused on manufacturing only top-grade emission control products, Eastern Catalytic will perfectly serve your purpose if you opt for a high quality catalytic converter....
      $33.45 - $114.72
    • (2 reviews)
      # sp128208
      ECO III Direct Fit Converter and Pipe Assembly by Eastern®. 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
      $116.57 - $631.04
    • (1 review)
      # sp94077
      Catalytic Converter by AP Exhaust®. Three-Way No / Air OBDII By Design US-EPA Compliant catalytic converters are efficient at the oxidation of HC’s and CO, and very efficient at the reduction of NOx, storing O2, and the steady release...
      $51.78 - $300.33
    • (9 reviews)
      # sp128237
      Catalytic Converter and Pipe Assembly by AP Exhaust®. The growing concern for the environment means there is a growing need for quality emission control products. AP catalysts and catalytic convert systems can be found in a vast array...
      5-year/50,000-mile warranty on converter body25,000-mile warranty on emissions
      $97.94 - $1,089.04
    • (4 reviews)
      # sp128241
      Catalytic 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
      $44.35 - $1,312.96
    • (0 reviews)
      # sp132566
      Universal 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...
      $152.47 - $284.74
    • (7 reviews)
      # sp128140
      Catalytic Converter and Pipe Assembly by DEC®. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are made from a heavy duty stainless steel outer...
      Direct fitMade from a heavy duty stainless steel outer shell
      $84.25 - $1,297.32
    • (3 reviews)
      # sp128240
      Direct Fit Catalytic Converter and Pipe Assembly by PaceSetter®. If you want to get the most out of your vehicle, this PaceSetter product is second to none. Engineered with meticulous attention to detail, it guarantees impeccable...
      Direct-Fit Catalytic Converters are a direct replacement for original equipmentManufactured using mandrel-bent 16-gauge and stainless steel tubing
      $59.08 - $686.55
    • (0 reviews)
      # sp138402
      Universal-Fit Catalytic Converter by PaceSetter®. If you want to get the most out of your vehicle, this PaceSetter product is second to none. Engineered with meticulous attention to detail, it guarantees impeccable quality and superior...
      Heavy Precious Metals LoadingFits 1000s of Different vehicles; Fabrication is required
      $56.51 - $368.84
    • (0 reviews)
      # sp109858
      Catalytic Converter Gasket by Bosal®. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs should not be put off, both for safety and legal reasons, but before you waste your time and gas...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $6.06 - $10.57
    • (0 reviews)
      # sp132533
      Catalytic Converter Gasket by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker accessories,...
      Makes installation quick and easyOptimal OE-style fit and quality
      $2.24 - $4.17
    • (1 review)
      # sp93975
      Exhaust Gasket by AP Exhaust®. This superior product was carefully designed with key attention to detail and manufactured from high-grade materials to the strict standards of the highest quality. This AP Exhaust Technologies product...
      Made from first-rate materialsEnsures outstanding durability
      $0.84 - $80.75




    Featured Brands

    The Audi catalytic converter (AKA catcon or cat) was first introduced in the mid-70's, and back then, it performed only two tasks, which is exactly why it was called a two-way converter. It oxidized carbon monoxide to carbon dioxide and hydrocarbons to water and carbon dioxide (oxidation stage). In 1981, the two-way converter was replaced by a much more efficient three-way catcon, which additionally reduced nitrogen oxide emissions (reduction stage).

    Today, the two-way version is used in diesel applications only, while most vehicles are equipped with a three-way catalytic converter. Located between the engine and muffler, the converter actually resembles a muffler in shape, though the construction of these two units is completely different. The body of the converter is usually made of stainless steel. Inside the body, you'll find an insulated chamber, which contains three main components of any converter: substrate (or catalyst core), washcoat, and catalyst.

    The catalyst core usually has a honeycomb structure, and it's most often a ceramic monolith. Basically, it serves as a support for the washcoat. The washcoat itself is a carrier for the catalytic materials. Materials for the washcoat are chosen to form an irregular surface, which maximizes the catalytically active layer available to react with the exhaust gases. And then comes the catalyst, which is most ofter a mixture of precious metals such as palladium (oxidation catalyst) and rhodium (reduction catalyst). When the exhaust stream passes through the converter, it contacts with the catalyst and all the toxic elements covert into the harmless substances. The leaving gas is monitored by the control system to make sure it meets the emissions requirements.

    Related Categories

    Popular Products



    Audi Catalytic Converters Reviews

    Average rating:  5  5 - 1 review
    5 of 5
    Catalyst
    The product is clean and works doesn't take long depending where u are and worth buying what u need.
    Posted by Luis E Mendez (Aurora, IL) / May 19, 20152002 Audi A4
    Was this review helpful for you? Yes


    Low Prices Price match guarantee
    In-House Experts We know our products
    Guaranteed Fitment Always the correct part
    Easy Returns Quick & Hassle Free

    All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. It is neither inferred nor implied that any item sold by CARiD.com is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.

    SECURE SHOPPING