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You selected your high-performance car or truck to enjoy its superb engine power and performance, keep up that decision and install first rate replacement parts. When you picked your Audi, you invested in a vehicle of exceptional characteristics and considerable power; you can ensure that choice by using only the finest parts. Audi is acclaimed for crafting well-made and dynamic automobiles that look as good as they perform. Your Audi Catalytic Converter is a part that reduces the quantity of harmful emissions by your car or truck's exhaust, allowing your car to achieve a passing score on your local emissions test. Audi Catalytic Converters do their job by chemically converting pollutants in the exhaust into ordinary water and carbon dioxide, via a chemical catalyst, such as platinum, rhodium, or palladium, then expelling the treated exhaust out the vehicle exhaust. Though rugged, a converter sometimes breaks or fails, usually if it is struck by road debris. Sometimes the most frustrating thing about fixing an older vehicle is looking for a reliable source of quality parts. When you must have the right car or truck part, talk to our live automotive experts and allow them to answer your questions. When you need the best in great parts at fantastic prices, go to www.partsgeek.com!

Click to Enlarge 99 1999 Audi A4 Quattro Catalytic Converter 1.8L 4 Cyl Bosal Not Legal in California Retail Price: $700.00 Your Price: $207.75 Quantity: Part Number: W0133-1787000 Notes: 49-state legal, OBDII compatible, not legal for sale or use in California. ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters ** Product Remark: Not Legal in California Availability: In Stock Shipping Options: Ground, Overnight, 2 Day This Product Fits the Following:   Vehicle Engine •  1999 Audi A4 Quattro 1.8L 4 Cyl

Image is not vehicle specific 99 1999 Audi A6 Quattro Catalytic Converter 2.8L V6 Left A & B Not Legal in California Retail Price: $700.00 Your Price: $342.75 Quantity: Part Number: W0133-1735612 Notes: 49-state legal, OBDII compatible, not legal for sale or use in California. ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters ** Product Remark: Not Legal in California Position: Left Availability: In Stock Shipping Options: Ground, Overnight, 2 Day This Product Fits the Following:   Vehicle Engine •  1999 Audi A6 Quattro 2.8L V6

Image is not vehicle specific 00 2000 Audi A4 Quattro Catalytic Converter 2.8L V6 ATQ Right DEC Not Legal in California Retail Price: $539.18 Your Price: $485.75 Quantity: Part Number: W0133-1792744 Notes: 49-state legal, OBDII compatible, not legal for sale or use in California. ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters ** Product Remark: Not Legal in California Position: Right Availability: In Stock Shipping Options: Ground, Overnight, 2 Day This Product Fits the Following:   Vehicle Engine Transmission •  2000 Audi A4 Quattro 2.8L V6 ATQ  Transaxle Standard 5 Spd

Image is not vehicle specific 00 2000 Audi A4 Quattro Catalytic Converter 2.8L V6 ATQ Left DEC Not Legal in California Retail Price: $525.86 Your Price: $473.75 Quantity: Part Number: W0133-1792746 Notes: 49-state legal, OBDII compatible, not legal for sale or use in California. ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters ** Product Remark: Not Legal in California Position: Left Availability: In Stock Shipping Options: Ground, Overnight, 2 Day This Product Fits the Following:   Vehicle Engine Transmission •  2000 Audi A4 Quattro 2.8L V6 ATQ  Transaxle Standard 5 Spd

Image is not vehicle specific 00 2000 Audi A6 Quattro Catalytic Converter 2.8L V6 ATQ Right Bosal Not Legal in California Retail Price: $368.24 Your Price: $331.75 Quantity: Part Number: W0133-1794519 Notes: 49-state legal, OBDII compatible, not legal for sale or use in California. ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters ** Product Remark: Not Legal in California Position: Right Availability: In Stock Shipping Options: Ground, Overnight, 2 Day This Product Fits the Following:   Vehicle Engine Transmission •  2000 Audi A6 Quattro 2.8L V6 ATQ  Transaxle Automatic 5 Spd

Click to Enlarge 02 2002 Audi A4 Quattro Catalytic Converter 1.8L 4 Cyl DEC Not Legal in California Retail Price: $700.00 Your Price: $387.75 Quantity: Part Number: W0133-1736649 Notes: 49-state legal, OBDII compatible, not legal for sale or use in California. ** Replacement of All O2 Sensors and Air Mass Flow Sensors is Also Highly Recommended When Replacing Catalytic Converters** ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters ** Product Remark: Not Legal in California Availability: In Stock Shipping Options: Ground, Overnight, 2 Day This Product Fits the Following:   Vehicle Engine •  2002 Audi A4 Quattro 1.8L 4 Cyl

Click to Enlarge 04 2004 Audi A4 Quattro Catalytic Converter 1.8L 4 Cyl DEC Not Legal in California Retail Price: $700.00 Your Price: $387.75 Quantity: Part Number: W0133-1736649 Notes: 49-state legal, OBDII compatible, not legal for sale or use in California. ** Replacement of All O2 Sensors and Air Mass Flow Sensors is Also Highly Recommended When Replacing Catalytic Converters** ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters ** Product Remark: Not Legal in California Availability: In Stock Shipping Options: Ground, Overnight, 2 Day This Product Fits the Following:   Vehicle Engine •  2004 Audi A4 Quattro 1.8L 4 Cyl

Image is not vehicle specific 00 2000 Audi A4 Quattro Catalytic Converter 2.8L V6 ATQ Left Bosal Not Legal in California Retail Price: $415.97 Your Price: $374.75 Quantity: Part Number: W0133-1815847 Notes: 49-state legal, OBDII compatible, not legal for sale or use in California. ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters ** Product Remark: Not Legal in California Position: Left Availability: In Stock Shipping Options: Ground, Overnight, 2 Day This Product Fits the Following:   Vehicle Engine Transmission •  2000 Audi A4 Quattro 2.8L V6 ATQ  Transaxle Automatic 5 Spd

Image is not vehicle specific 00 2000 Audi A4 Quattro Catalytic Converter 2.8L V6 ATQ Right Bosal Not Legal in California Retail Price: $415.97 Your Price: $374.75 Quantity: Part Number: W0133-1815848 Notes: 49-state legal, OBDII compatible, not legal for sale or use in California. ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters ** Product Remark: Not Legal in California Position: Right Availability: In Stock Shipping Options: Ground, Overnight, 2 Day This Product Fits the Following:   Vehicle Engine Transmission •  2000 Audi A4 Quattro 2.8L V6 ATQ  Transaxle Automatic 5 Spd

Image is not vehicle specific 96 1996 Audi A4 Catalytic Converter 2.8L V6 Right Bosal Not Legal in California Retail Price: $700.00 Your Price: $302.75 Quantity: Part Number: W0133-1735032 Notes: ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters ** Detailed Notes: 49-state legal, OBDII compatible, not legal for sale or use in California. 050908aq: These units will differ on vehicles Flang side. Right now, Bosal is working to correct the Flang; mistake made by Manufacture Product Remark: Not Legal in California Position: Right Availability: In Stock Shipping Options: Ground, Overnight, 2 Day This Product Fits the Following:   Vehicle Engine •  1996 Audi A4 2.8L V6

Image is not vehicle specific 96 1996 Audi A4 Quattro Catalytic Converter 2.8L V6 Right Bosal Not Legal in California Retail Price: $700.00 Your Price: $302.75 Quantity: Part Number: W0133-1735032 Notes: ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters ** Detailed Notes: 49-state legal, OBDII compatible, not legal for sale or use in California. 050908aq: These units will differ on vehicles Flang side. Right now, Bosal is working to correct the Flang; mistake made by Manufacture Product Remark: Not Legal in California Position: Right Availability: In Stock Shipping Options: Ground, Overnight, 2 Day This Product Fits the Following:   Vehicle Engine •  1996 Audi A4 Quattro 2.8L V6

Click to Enlarge 99 1999 Audi A4 Catalytic Converter 1.8L 4 Cyl A & B Not Legal in California Retail Price: $700.00 Your Price: $295.75 Quantity: Part Number: W0133-1599445 Notes: 49-state legal, OBDII compatible, not legal for sale or use in California. ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters ** Product Remark: Not Legal in California Availability: In Stock Shipping Options: Ground, Overnight, 2 Day This Product Fits the Following:   Vehicle Engine •  1999 Audi A4 1.8L 4 Cyl

Image is not vehicle specific 97 1997 Audi A4 Quattro Catalytic Converter 2.8L V6 Left Bosal Not Legal in California Retail Price: $700.00 Your Price: $302.75 Quantity: Part Number: W0133-1735030 Notes: ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters ** Detailed Notes: 49-state legal, OBDII compatible, not legal for sale or use in California. Product Remark: Not Legal in California Position: Left Availability: In Stock Shipping Options: Ground, Overnight, 2 Day This Product Fits the Following:   Vehicle Engine •  1997 Audi A4 Quattro 2.8L V6

Image is not vehicle specific 98 1998 Audi A4 Quattro Catalytic Converter 2.8L V6 Left Bosal Not Legal in California Retail Price: $700.00 Your Price: $302.75 Quantity: Part Number: W0133-1735030 Notes: ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters ** Detailed Notes: 49-state legal, OBDII compatible, not legal for sale or use in California. Product Remark: Not Legal in California Position: Left Availability: In Stock Shipping Options: Ground, Overnight, 2 Day This Product Fits the Following:   Vehicle Engine •  1998 Audi A4 Quattro 2.8L V6

Image is not vehicle specific 98 1998 Audi A4 Quattro Catalytic Converter 2.8L V6 Right Bosal Not Legal in California Retail Price: $700.00 Your Price: $302.75 Quantity: Part Number: W0133-1735032 Notes: ** Replacement of Oxygen Sensors and Air Mass Flow Sensors Is Also Highly Recommended When Replacing Catalytic Converters ** Detailed Notes: 49-state legal, OBDII compatible, not legal for sale or use in California. 050908aq: These units will differ on vehicles Flang side. Right now, Bosal is working to correct the Flang; mistake made by Manufacture Product Remark: Not Legal in California Position: Right Availability: In Stock Shipping Options: Ground, Overnight, 2 Day This Product Fits the Following:   Vehicle Engine •  1998 Audi A4 Quattro 2.8L V6