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Audi AG is the German auto maker that has also been a part of the German automobile manufacturing company Volkswagen Group since 1966. The Audi’s headquarters is situated in Ingolstadt, Germany. Audi was founded in 1909 by August Horch whose last name is translated from German into Latin as “audi” which means “listen”. Audi AG has been bearing this name since 1985, before it was named Audi NSU Auto Union AG. This automobile company is famous for being the first to use the all-wheel drive system on cars, not on vehicles. Specifically, their first model with a patented quattro all-wheel drive was the 1980 high-performance sports coupe.

We strive to ensure irreproachable quality, perfect service, quick delivery and economical price, all in one. Thus, our team is here to display and offer you the whole range of Audi emission control parts. Any time you need it, you are always sure to find a proper vapor canister, oxygen sensor and many other units that will help your Audi run clean and efficient. Our company deals with the world recognized brands that use high-quality materials for production, so you can be sure that the products we offer will meet the strictest demands for durability and functionality. Bosch, Delphi, and other manufacturers fill our web store with parts which feature premium quality. Our team does its best to keep your Audi emission control system operating properly.

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    • (1 review)
      # sp27974
      Oxygen Sensor by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to all channels...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $11.14 - $191.07
    • (1 review)
      # sp94914
      Air Fuel Ratio Sensor by Denso®. Make sure your engine runs efficiently and produces fewer emissions by replacing your malfunctioning fuel-ratio sensors with these top-notch products designed by Denso. Engineered with the use of...
      Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies
      $35.62 - $418.03
    • (11 reviews)
      # sp99082
      OE Connector Oxygen Sensor by Denso®. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the air fuel mixture under idle,...
      Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies
      $10.75 - $506.53
    • (1 review)
      # sp99083
      Oxygen Sensor by Bosch®. The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is...
      OE-Equivalent.Direct fit for easy installation.
      $12.57 - $55.17
    • (1 review)
      # sp92988
      SevereDuty™ Front Brake Pads by Wagner®. This sensor utilizes a sophisticated sensing element enabling it to produce a precise output in proportion to the air/fuel ratio. The A/F sensor measures exhaust gas oxygen accurately from...
      Detects the exact amount of unburned fuel in the exhaust streamOE connectors and OE-style harness for continuous wire from connector to sensor
      $41.35 - $297.50
    • (0 reviews)
      # sp27211
      Professional Oxygen Sensor by ACDelco®. If your O2 Sensor is not functioning properly, you are robbing yourself of performance and costing yourself money at the gas pump. Let ACDelco’s Professional Oxygen Sensors help. You can...
      ACDelco Professional Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditions.Customers can receive better gas mileage with a properly working oxygen sensor.
      $19.53 - $206.14
    • (12 reviews)
      # sp5156
      Replacement Oxygen Sensor by NTK®. This product is designed to improve engine efficiency and fuel mileage, while reducing emissions and extending catalyst life. The oxygen sensor is made of premium quality material and extensively...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      +3
      $12.88 - $233.59
    • (0 reviews)
      # sp5756
      Oxygen Sensor by Delphi®. As one of the leading suppliers of oxygen sensor technology since 1978, Delphi planar technology is the result of their OE and aftermarket engineers partnering together to develop the most innovative...
      OE connectors and wire lengths within three inches of OE specificationsResists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long life
      $12.00 - $197.43
    • (0 reviews)
      # sp99297
      Oxygen Sensor by Spectra Premium®. To ensure your vehicle has optimal performance and fuel economy while producing minimal emissions replace a defective O2 sensor with one backed by the aftermarket’s most rigorous testing...
      Increase vehicle fuel economy and engine performance while decreasing vehicle exhaust emissions100% performance tested to meet vehicle requirements
      $9.37 - $267.05
    • (0 reviews)
      # sp26976
      Oxygen Sensor 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, you get...
      Makes installation quick and easyOptimal OE-style fit and quality
      $37.11 - $191.50
    • (0 reviews)
      # sp5495
      OE Connector Oxygen Sensor by SNG®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle’s emissions control system is in need of repair, but before you waste your time and gas running out...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $38.20 - $102.45
    • (2 reviews)
      # sp13483
      Intermotor™ PCV Valve by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $1.34 - $138.78
    • (0 reviews)
      # sp27986
      TechSmart Engine Crankcase Vent Valve by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $23.38 - $85.65
    • (0 reviews)
      # sp27987
      TechSmart Engine Oil Separator by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $17.93 - $132.61
    • (0 reviews)
      # sp13465
      Do you hear a humming or growling sound as you drive, or a clicking or clunking noise when cornering? If so, your vehicle may need wheel bearing or drive axle repairs. But before you waste your time and gas running out to the auto...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $14.03 - $329.07
    • (0 reviews)
      # sp98556
      Crankcase Vent Valve by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system work as it...
      Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation
      $8.75 - $96.98
    • (0 reviews)
      # sp12662
      PCV Valve by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system work as it should and help...
      Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation
      $2.40 - $22.52
    • (0 reviews)
      # sp98537
      Crankcase Vent Valve by URO®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle's emissions control system is in need of repair, but before you waste your time and gas running out to the...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $70.96 - $96.98
    • (0 reviews)
      # sp27692
      Crankcase Vent Valve by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the 1950’s, brand...
      OE quality products from top original equipmentTop quality materials
      $14.34 - $93.35
    • (0 reviews)
      # sp35738
      Engine Crankcase Vent Kit by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the 1950’s,...
      OE quality products from top original equipmentTop quality materials
      $84.58 - $93.41
    • (0 reviews)
      # sp6407
      PCV Valve by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the 1950’s, brand understands...
      OE quality products from top original equipmentTop quality materials
      $1.93 - $53.52
    • (1 review)
      # sp96027
      Crankcase Vent Valve by Kayser®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle's emissions control system is in need of repair, but before you waste your time and gas running out to the...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $36.91 - $54.89
    • (0 reviews)
      # sp26612
      Crankcase Vent Valve by Original Equipment®. If you have a dirty air filter, clogged PCV valve, or defective MAF sensor you may be tempted to just run down to the local auto parts chain store for a replacement, but before you waste...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $47.85 - $62.87
    • (1 review)
      # sp2079
      PCV Valve by Pierburg®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle's emissions control system is in need of repair, but before you waste your time and gas running out to the auto...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $37.00 - $138.24
    • (0 reviews)
      # sp26897
      Crankcase Vent Valve by Vaico®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas...
      OE quality fluids from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $11.50 - $93.02
    • (0 reviews)
      # sp13461
      Carbon Canister by Genuine®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle’s emissions control system is in need of repair, but before you waste your time and gas running out to the...
      OE quality fluids from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $92.69 - $974.89
    • (0 reviews)
      # sp13481
      Intermotor™ EGR Valve by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $21.02 - $855.37
    • (1 review)
      # sp97229
      EGR Valve by Pierburg®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle's emissions control system is in need of repair, but before you waste your time and gas running out to the auto...
      High quality at an affordable priceExpertly made from premium materials
      $87.52 - $279.68
    • (0 reviews)
      # sp94937
      Secondary Air Injection Pump by Dorman®. Dorman’s A.I.R. Pump comes with all the hardware and other components necessary for a complete repair. Since this part is a direct replacement, the exact fit adds another layer of...
      Save money by replacing only the failed pump - instead of the entire mating cover assemblyIncludes gasket, mounting screws, and alternate electrical connectors
      $80.09 - $404.99
    • (0 reviews)
      # sp13460
      Air Injection Pump by Genuine®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle’s emissions control system is in need of repair, but before you waste your time and gas running out to...
      High quality at an affordable priceExpertly made from premium materials
      $190.01 - $797.52
    • (2 reviews)
      # sp94590
      Air Pump by Cardone®. 100% testing of all units guarantees reliable performance every time. High temperature grease extends bearing life, resulting in longer pump life. New carbon shoes/vanes on every unit ensure accurate air...
      50-state emissions street legalThe finest quality at a great price
      $64.92 - $458.50
    • (0 reviews)
      # sp12669
      Secondary Air Injection Pump by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system work as...
      Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation
      $123.72
    • (0 reviews)
      # sp32208
      Secondary Air Injection Pump by MTC®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle’s emissions control system is in need of repair, but before you waste your time and gas running out...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $344.67
    • (1 review)
      # sp97226
      Air Pump by Pierburg®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle's emissions control system is in need of repair, but before you waste your time and gas running out to the auto...
      High quality at an affordable priceExpertly made from premium materials
      $216.56 - $601.21
    • (10 reviews)
      # sp26979
      Direct Fit Catalytic Converters 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...
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $110.04 - $809.61
    • (8 reviews)
      # sp4303
      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 Walker,...
      Flange to flange, direct fit design bolts to existing exhaustEPA & CARB Emissions Products Available for Most Vehicles
      $69.60 - $492.69
    • (17 reviews)
      # sp10058
      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 industry leader, for the finest emission...
      5 Year / 50,000 Miles Warranty on Structural Components5 Year / 50,000 Miles Warranty on Exhaust Emission (CARB Models)
      $76.07 - $842.09
    • (1 review)
      # sp10059
      Universal Fit Ultra™ 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....
      EPA & CARB Emissions Products Available for Most Vehicles5 Year / 50,000 Miles Warranty on Structural Components
      $64.67 - $104.18
    • (3 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...
      EPA & CARB Emissions Products Available for Most VehiclesEmission, Structural Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)
      $49.43 - $435.22
    • (1 review)
      # sp4294
      Direct 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
      $136.84 - $1,086.65
    • (12 reviews)
      # sp7036
      EPA Direct Fit Undercar 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...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $34.42 - $789.48
    • (6 reviews)
      # sp7037
      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 catalytic converter is designed to reduce...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $31.88 - $260.28
    • (0 reviews)
      # sp4295
      Universal 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...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $31.88 - $260.28
    • (2 reviews)
      # sp94048
      Direct-Fit Catalytic Converters (Shipping Restrictions) by AP Exhaust Technologies®. The growing concern for the environment means there is a growing need for quality emission control products. AP catalysts and catalytic convert...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $76.09 - $937.62
    • (2 reviews)
      # sp93964
      Direct Fit Catalytic Converters 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...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $54.47 - $1,122.56
    • (1 review)
      # sp94077
      Universal Fit Catalytic Converters 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,...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $49.38 - $341.58
    • (8 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...
      Ensures an even distribution of the gas flow in the converter to deliver optimized conversion of harmful gasesConcepts-enhance the reduction of emissions and ensure a high durability
      $54.13 - $839.06
    • (6 reviews)
      # sp92788
      Catalytic Converter by DEC®. Converter Configuration: Direct Fit. 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...
      Direct fitMade from a heavy duty stainless steel outer shell
      $82.60 - $1,271.88
    • (0 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...
      Catalytic Converters are a direct replacement for original equipmentEngineered for durability and ease of installation
      $86.81 - $373.54
    • (0 reviews)
      # sp29963
      Direct Fit CA-Legal 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...
      Direct-Fit Catalytic Converters are a direct replacement for original equipmentManufactured using mandrel-bent 16-gauge and stainless steel tubing
      $91.38 - $477.53
    • (7 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...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $18.21 - $1,311.11
    • (0 reviews)
      # sp32909
      Standard Grade Federal Catalytic Converter by Flowmaster®. Flowmaster's Standard Grade line of Manifold direct fit catalytic converters are specifically designed to meet or exceed OEM specifications for exact fit and performance,...
      Made of High Quality Stainless SteelImprove Torque and Throttle Response
      $160.80 - $1,066.25
    • (13 reviews)
      # sp839
      Direct Fit Catalytic Converter by MagnaFlow®. If your cat needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace the factory unit, with little or...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $202.45 - $1,748.68
    • (29 reviews)
      # sp7280
      Direct Fit Pre-OBDII Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace the factory unit, with...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $79.39 - $1,095.80
    • (9 reviews)
      # sp96181
      Direct Fit OEM Grade Catalytic Converter (Shipping Restrictions) by Magnaflow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter is part of the exhaust...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $148.97 - $3,460.20
    • (3 reviews)
      # sp96188
      Universal Catalytic Converter by Magnaflow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This universal fit converter will require some fabrication to be...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $69.27 - $466.66
    • (5 reviews)
      # sp7279
      Direct Fit Pre-OBDII Driver Side Catalytic Converter with Header by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter is part of the exhaust...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $238.99 - $796.77
    • (4 reviews)
      # sp96182
      Direct Fit OEM Grade Catalytic Converter with Header by Magnaflow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter is part of the exhaust...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $285.10 - $1,040.56
    • (0 reviews)
      # sp6816
      PCV Diaphragm Repair Kit by Dorman®. Save time, money and labor with Dorman’s PCV Valve Diaphragm. Now you can replace just the failed part, without the expense and hassle of installing a complete valve cover assembly. All the...
      Direct replacement for a proper fitEasy to install
      $17.07 - $34.95
    • (0 reviews)
      # sp13671
      PCV Valve by Dorman®. Dorman has all the components needed for a complete repair. Quickly and easily installed, it eliminates the clunking noise that may result when this part fails, while restoring original ride control.
      Easy to installDirect replacement for a proper fit
      $8.84 - $26.77




    Guides & Articles

    • Replacement Emission Control Parts
      Oxygen Sensors - Why Does My Car Have Four, And Can I Replace One Myself?
      An oxygen sensor (also known as an O2 sensor or Lambda sensor) is a sensor designed to generate a reading based on the content of oxygen in an automotive exhaust system. The sensor itself is made of a ceramic compound with porous-shaped electrodes coated in platinum, surrounded by a protective metal shell casing. O2 sensor casings are threaded, and the entire unit is designed to screw in until it reaches a half-in, half-out position on the exhaust pipe. Modern oxygen sensors are heated to ensure they reach operating temperature quickly.
      August 18, 2014

    Popular Products

    Audi Emission Control Parts 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.
    LPosted by Luis E (Aurora, IL) / May 19, 2015
    2002 Audi A4
    Was this review helpful for you? Yes
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