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Audi A6 Quattro Catalytic Converter

We have 9 Items In-stock. Select a year to continue.
$220.20 List Price $259.84 Save $39.64 Availability: In Stock
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This Evan Fischer 49-State Legal (No CA) Direct Fit Catalytic Converter is manufactured from high quality and durable stainless steel catalytic case, 16-gauge aluminized steel tubes, and heat shield for long lasting durability and better protection for your vehicle. It also features honeycomb catalyst that has maximum surface area flow. OBD-II and EPA compliant catalytic converter; It is a high quality aftermarket replacement for the OEM catalytic converter. Designed for easy installation - it requires no cutting or welding!

Evan Fischer also offers comprehensive manifold converter assemblies for newer vehicle models!

  • OBD-II And EPA compliant catalytic converter
  • Requires NO cutting or welding
  • Honeycomb catalyst with maximum surface area flow
  • 49-State Legal, not for sale or use in California; cannot be shipped to California addresses
  • 2-year or 25,000-mile Evan Fischer warranty on converter and 5-year or 50,000-mile Evan Fischer warranty on another components
  • SKU#: REPV960306
  • Brand: Evan Fischer
  • Fit Note: Automatic Transmission
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 49.5 in. overall length
(see more)
Fits the following Audi A6 Quattro Years:
  • 2000-2001 | 6 Cyl 2.8L | Avant, Base
$51.93 List Price $61.28 Save $9.35 Availability: In Stock
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EASTERN CATALYTIC CONVERTER

World-class quality and innovation have made Eastern the best converter manufacturer in the business. 100% of Eastern's research and development efforts goes into making the finest aftermarket and original equipment catalytic converters on the market. Each Eastern catalytic converter uses advanced materials design which retains maximum engine output and maximizes catalytic efficiency. Eastern's proprietary NANO technology chemistry yields highly efficient loadings for lower cost and better converter efficiency.

Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: EAST70316
  • Brand: Eastern
  • Fit Note: Manual Transmission
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
(see more)
Fits the following Audi A6 Quattro Years:
  • 2000-2004 | 6 Cyl 2.7L | Base
Rating: (see review/s)

"Came very fast. I ordered it round a lil before 1 on a tuesday and it was at my house friday morning. It was the right part and the price was way less than if I had bought it from a local auto parts store. Two things to know; you need to be sure everything that caused it to go bad has been fixed if not you will eventually kill the new one so get your check engine light off first. Clean out your egr valve if you didnt need to replace it might as well replace your pcv valve cuz its only $3 and clean out the area where its seated and if an O2 sensor is bad replace it the only two on this car (2000 model year) are right in the area of catalytic. Also if your flex pipe is bad you can just a flex pipe so you may be able to piece it together without having to buy the converter with the pipe to manifold. I ended up replacing or cleaning almost my whole emissions system to get it to pass the state test. With the help of this site and my own ingenuity what would have been over $500 in parts cost less than $140 not bad at all!!" posted by: In Cleveland on January 26, 2014

"Item arrived as described would recommend.thks..would buy from again as needed. Best price n town." posted by: Mike on December 1, 2013 view all 8 reviews

$97.63 List Price $126.35 Save $28.72 Availability: In Stock
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  • Not legal for use in California or in states adopting the California emissions standards
  • Semi-universal design – cut out your old catalytic converter and weld in the new one
  • Stainless Steel Construction
  • Legendary Magnaflow quality, power, and sound
  • Ceramic, honeycomb catalyst designed for maximum flow and surface area

When you want the best, you want Magnaflow!  These 49-State Legal semi-universal catalytic converters have a catalyst specifically designed for your vehicle – just cut out your old catalytic converter and weld in the new one.  Engineered to cut emissions and improve performance.

  • SKU#: M6699204HM
  • Brand: Magnaflow
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
(see more)
Fits the following Audi A6 Quattro Years:
  • 2000-2004 | 8 Cyl 4.2L | Base
Rating: (see review/s)

"Replaced entire exhaust and this item was part of it. Couple days for shipping arrived undamaged had everything welded and installed and sounds great. This is a fraction of the cost of a direct fit/bolt on converter so was pretty much a no-brainer." posted by: on May 18, 2014

$356.68 List Price $830.20 Save $473.52 Availability: In Stock
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Davico Catalytic Converter

Davico Manufacturing is committed to producing hard to find and specialized exhaust parts for the customer's satisfaction. Its catalytic converter is an example of the company's outstanding dedication.

Davico Catalytic Converter's design enables the conversion of harmful compounds into less dangerous gasses to help in pollution control without reducing its efficiency. Designed for many makes and models, this converter is easy to install.

Specifications:

  • 51.5 in. overall length
  • Does not include gasket
  • Does not require cutting, sliding, clamping, or welding for installation
Note: Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: DAV18085
  • Brand: Davico
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
(see more)
Fits the following Audi A6 Quattro Years:
  • 2002-2003 | 6 Cyl 3.0L | Avant, Base
Rating: (see review/s)

"The catalytic converter fit great and all the brackets were in the right spots. However, while looking it over before install, I noticed there was a gap in one of the welds near the header flange. Luckily, I was able to borrow a welder and correct it." posted by: Rick on March 3, 2011

$431.53 List Price $949.26 Save $517.73 Availability: In Stock
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CATCO CATALYTIC CONVERTER ASSEMBLY

Catco catalytic converters are designed with 409 stainless steel pipes and shell for longer life.

Specifications
  • 4-bolt flange welded inlet
  • Standard assembly with one catalytic converter
  • Oval body
  • 50.25 in. overall length
  • 1.97 in. outlet diameter
  • Single inlet and outlet configuration
Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: CAT4206
  • Brand: Catco
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 2-3 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 50.25 in. overall length
(see more)
Fits the following Audi A6 Quattro Years:
  • 2000-2002 | 6 Cyl 2.7L | Base
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$532.68 List Price $1,040.74 Save $508.06 Availability: In Stock
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WALKER CATALYTIC CONVERTER ASSEMBLY

Walker catalytic converters feature OE style design and fit, thicker OE-quality flanges, oxygen sensor fittings, heat-shielded pipe, and structural brace for enhanced strength and durability.

Features
  • 3-way catalyst style
  • 4-bolt flange inlet
  • Standard assembly with two catalytic converters
  • Higher loaded substrate
  • Round body
  • Easy bolt-on installation
Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: WK55388
  • Brand: Walker
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: Same day - 1 business day
  • Dimensions: 50.25 in. overall length
(see more)
Fits the following Audi A6 Quattro Years:
  • 2001 | 6 Cyl 2.7L | Base
$422.83 List Price $498.94 Save $76.11 Availability: In Stock
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BOSAL CATALYTIC CONVERTER ASSEMBLY

Bosal catalytic converters are made to fit vehicle-specific requirements for backpressure, emissions, sound levels, and sensors. Designed and built for long life reliability.

Specifications
  • Flange inlet
  • Standard assembly with two catalytic converters
  • Oval body
  • 49 in. L x 15 in. W x 7 in. H
  • Single inlet and outlet configuration
Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: BO099222
  • Brand: Bosal
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: Same day - 1 business day
  • Dimensions: 49 in. L x 15 in. W x 7 in. H
  • Replaces OE Number: 4B0254550LX, 4B0254550NX
(see more)
Fits the following Audi A6 Quattro Years:
  • 2000-2001 | 6 Cyl 2.8L | Avant, Base
$493.95 List Price $1,000.00 Save $506.05 Availability: In Stock
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Diversified Environmental Catalysts
Diversified Environmental Catalysts, Inc. specializes in the manufacturing of direct fit catalytic converters for import and domestic vehicles.

Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: W0133-1903510
  • Brand: Benchmark
  • Fit Note: Automatic Transmission, 49-state legal, OBDII compatible, Not Approved for Sale or Use in California. ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters **
  • Quantity Sold: Assembly
  • Tube Material: Steel
  • Anticipated Ship Out Time: 1-2 Business Days
 
Fits the following Audi A6 Quattro Years:
  • 2003-2004 | 6 Cyl 2.7L | Base
$519.95 List Price $900.00 Save $380.05 Availability: In Stock
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Emico Catalytic Converters

Emico catalytic converters are quality direct fit that are manufactured to high quality standards using O.E. production processes. Emico Converters are made from high quality stainless steel, and use the factory mounting points which do not require "fitting" and "sealing". The exterior tubes are bent using the mandrel bender, which prevents tube cross sections from deforming and wrinkling.

  • Duracat technology for outstanding longevity
  • 100% OE manufacturing process
  • OE Style Mounting for Easy Installation
  • OE Designed Flanges
  • Heavy Duty Stainless Steel Construction

Installation Note: The manufacturer recommends the replacement of the oxygen sensor(s) when replacing the catalyst.

EPA/CARB Regulation: This Catalytic Converter is NOT CARB Approved and is not approved for sale or use in vehicles manufactured for or registered in the State of California. Do not install this Catalytic Converter in California emission vehicles within or outside the State of California.

Warranty Information: Emico Technologies Inc. warrants that its catalytic converter is free from defects in materials and workmanship. Emico Converters have been designed and manufactured to meet US EPA and California CARB requirements, and when the vehicle is properly maintained, the catalytic converter is warranted to meet such requirements for 25,000 miles from the time of installation. The stainless steel body and the end pipes are separately warranted for 5 years or 50,000 miles from the time of installation.

Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: W0133-1914667
  • Brand: Emico
  • Fit Note: Automatic Transmission, This catalytic converter is NOT approved for sale or use in California., Standard Transmission, This catalytic converter is NOT approved for sale or use in California.
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
 
Fits the following Audi A6 Quattro Years:
  • 2000-2004 | 6 Cyl 2.7L | Base
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Select more Audi A6 Quattro parts under Catalytic Converters & Components from list below.

It's always a good thing to keep our environment clean and safe. That is why hazardous car emissions are reduced as much as possible. With an Audi A6 Quattro's catalytic converter, enjoying a good drive without contributing to air pollution is made possible. Because it's aimed at saving Mother Earth, your Quattro's catcon turns toxic gases produced by your car into less harmful gases. One example of the catcon's tasks is to break down nitrogen oxide into nitrogen and oxygen. Since most states require all vehicles to undergo and pass an emissions test, getting the appropriate catalytic converter for your Quattro is important.

Frequently Asked Questions

Ask APW
  • How can the catalytic converter in an Audi A6 Quattro be kept in good condition?
    Answer: Basically, catalytic converters don't need a maintenance of their own. Their lifespan depends on the vehicle's condition, making a regular vehicle tune-up essential. Car care and maintenance doesn't have to be handled by experts or by auto shops only. A DIYers basic car maintenance routine is enough to keep the vehicle in good condition. Another way to preserve a catcon's long-term service is to attend immediately to a Service Engine Soon or Check Engine light. This way, the catcon can be fixed even before it turns into a more expensive damage.
  • Is it possible to drive an Audi A6 Quattro even with a broken catalytic converter?
    Answer: Theoretically, yes. The Audi A6 Quattro's engine can still function even when its catcon is damaged. However, running on a broken catcon without a catcon at all is illegal in most US states. Aside from harmful emissions from the vehicle, a damaged catcon may also cause engine failure due to lack of air entering the system.
  • What are some signs of catalytic converter failure on a Audi A6 Quattro?
    Answer: To know if an Audi A6 Quattro's catalytic converter or catcon is broken, check for sudden drops in fuel efficiency or appearance of the MIL or Check Engine light. A catcon failure can also be indicated by the vehicle's failure to accelerate when the gas pedal is stepped on, or worse, the car's refusal to start. Aside from these signs, a more obvious symptom of catcon damage is failing an emission test. Usually, a clogged catalytic converter is the main cause of these symptoms. Because toxic gases are blocked from passing through the muffler, the gases could not get out of the Audi A6 Quattro. This leads to engine failure since air could not enter, causing an imbalance in the engine's air-fuel ratio. When the Audi A6 Quattro starts experiencing the indicators listed, it's highly recommended that the catcon be replaced immediately.