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Audi PartsAudi A4 PartsCatalytic Converter

Audi A4 Catalytic Converter

Your A4 is a prized possession.

Select Your VehicleAudi automobile enthusiasts have come to expect a certain level of a reputation for performance when driving their A4 around town. You bought your A4 because its sporty handling and German engineering agreed with your nature; so why would you be okay with second best when it comes to great quality auto parts? When your Audi A4 left the factory, it was destined for a person with discerning taste who wants German engineering in their automobile. The vehicle in your driveway symbolizes the best in class when it comes to all the cars, trucks, and SUVs these days.

Don't go too long without fixing your Catalytic Converter... here's why.

Getting the most out of your car or truck depends on your use of properly functioning exhaust and emissions parts. Your Audi A4 catalytic converter has been installed thanks to a federal mandate that is decades old. Inside every catalytic converter are cells made from platinum and/or rhodium arranged in a honeycomb pattern that turn the carbon monoxide and hydrocarbons that your Audi A4 produces into harmless molecules of carbon dioxide, oxygen, and some water. This process revolutionized automakers' ability to improve air quality, which is why every vehicle made today has a catalytic converter.

There's no reason to delay... make your purchase while supplies last.

Don't let a Catalytic Converter repair bring about the demise of your car, truck, or SUV, and don't gamble with its condition by installing anything but the best replacement parts. At Car Parts Discount, we have real customer support agents on the phone with enough expertise to help you purchase the correct Audi A4 part for your project or repair. Buying new Audi parts from www.carpartsdiscount.com means you are taking advantage of the absolute greatest original and aftermarket replacement A4 parts on the internet. Need 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996 Audi A4 Catalytic Converter parts? We've got them right here.

Info: Select your make and model in the red title bar above so we can show the parts you need.
Audi A4 CalCat Direct Fit Converter, OEM: 82667Walker
1997-2006 Audi A4 Walker CalCat Direct Fit Converter 82667
402.05, Save 39%   NEW ITEM
OEM: 82667, Item: 660794
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Audi A4 CalCat Universal Converter, OEM: 81804Walker
2000-2001 Audi A4 Walker CalCat Universal Converter 81804
117.86, Save 49%   NEW ITEMPOPULAR
OEM: 81804, Item: 660379
  Only 3 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front Left, Front Right

Audi A4 CalCat Universal Converter, OEM: 83304Walker
2005 Audi A4 Walker CalCat Universal Converter 83304
172.55, Save 39%   NEW ITEM
OEM: 83304, Item: 559510
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front Left, Front Right

Audi A4 Catalytic Converter, OEM: 52352
2009-2015 Audi A4 Magnaflow Catalytic Converter 52352
Add for Price, Save 21%   NEW ITEMPOPULAR
OEM: 52352, Item: 1416368
  In Stock, Usually ships within 1 business day
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Audi A4 Catalytic Converter, OEM: 448004
1996-1999 Audi A4 Magnaflow Catalytic Converter 448004
Add for Price, Save 16%   NEW ITEM
OEM: 448004, Item: 1226695
  Only 4 left In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Left, Right

Audi A4 Catalytic Converter, OEM: 82725Eastern Catalytic
1997-1999 Audi A4 Eastern Catalytic Catalytic Converter 82725
67.35, Save 39%   POPULAR
OEM: 82725, Item: 1005395
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

Audi A4 Catalytic Converter, OEM: 83164Eastern Catalytic
1997-1999 Audi A4 Eastern Catalytic Catalytic Converter 83164
64.05, Save 39%   NEW ITEM
OEM: 83164, Item: 1005398
  In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Left

Audi A4 Catalytic Converter, OEM: AU71360BDEC
2002-2006 Audi A4 DEC Catalytic Converter AU71360B
357.55, Save 39%   NEW ITEM
OEM: AU71360B, Item: 268385
  Only 7 left In Stock, Usually ships within 1 business day

Installation of this aftermarket catalytic converter is prohibited by law in California by C.A.R.B., and may also not comply with emissions regulations in other municipalities in other parts of the US and Canada. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact DEC directly for.. (more)

Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: AU91360DEC
1997-2000 Audi A4 DEC Catalytic Converter AU91360
440.35, Save 39%   NEW ITEM
OEM: AU91360, Item: 268390
  Only 4 left In Stock, Usually ships within 1 business day

This catalytic converter is compliant with C.A.R.B. rules, restrictions, and specifications. It can be installed on a vehicle in California as well as other municipalities that use this emissions standard. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact DEC directly for replacement.. (more)

Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 8D0253058L
1996-1999 Audi A4 Emico Catalytic Converter 8D0253058L
323.25, Save 39%   NEW ITEM
OEM: 8D0253058L, Item: 268401
  Only 5 left In Stock, Usually ships within 1 business day

Installation of aftermarket catalytic converters is prohibited by law in California by C.A.R.B., and may also not comply with emissions regulations in other municipalities in other parts of the US and Canada. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact Emico directly for replacement.. (more)

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

Audi A4 Catalytic Converter, OEM: 82526Walker
1996-1999 Audi A4 Walker Catalytic Converter 82526
176.45, Save 39%   NEW ITEM
OEM: 82526, Item: 1148128
  Only 9 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left, Right

Audi A4 Catalytic Converter, OEM: 096-3021/0963021Bosal
2000-2006 Audi A4 Bosal Catalytic Converter 096-3021
218.35, Save 39%   NEW ITEM
OEM: 096-3021, Item: 1244599
  Only 5 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 522501Bosal
1996-1999 Audi A4 Bosal Catalytic Converter 522501
203.45, Save 39%   NEW ITEM
OEM: 522501, Item: 1246912
  Only 3 left In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Left, Right

Audi A4 Catalytic Converter, OEM: 40684Eastern Catalytic
2005-2009 Audi A4 Eastern Catalytic Catalytic Converter 40684
245.05, Save 39%   NEW ITEM
OEM: 40684, Item: 1005162
  Only 2 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front

Audi A4 Catalytic Converter, OEM: 81660Walker
2000-2001 Audi A4 Walker Catalytic Converter 81660
139.35, Save 39%   NEW ITEM
OEM: 81660, Item: 1147937
  Only 3 left In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Rear Left, Rear Right

Audi A4 Catalytic Converter, OEM: 097-0443/0970443Bosal
1997-2006 Audi A4 Bosal Catalytic Converter 097-0443
98.15, Save 39%   NEW ITEM
OEM: 097-0443, Item: 1244616
  Only 2 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: AU9M1360BDEC
2001-2005 Audi A4 DEC Catalytic Converter AU9M1360B
Add for Price, Save 31%   NEW ITEM
OEM: AU9M1360B, Item: 472525
  In Stock, Usually ships within 1 business day

This catalytic converter is compliant with C.A.R.B. rules, restrictions, and specifications. It can be installed on a vehicle in California as well as other municipalities that use this emissions standard. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact DEC directly for replacement.. (more)

Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: AU9M1352DEC
1998-1999 Audi A4 DEC Catalytic Converter AU9M1352
Add for Price, Save 31%   NEW ITEM
OEM: AU9M1352, Item: 467455
  In Stock, Usually ships within 1 business day

This catalytic converter is compliant with C.A.R.B. rules, restrictions, and specifications. It can be installed on a vehicle in California as well as other municipalities that use this emissions standard. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact DEC directly for replacement.. (more)

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

Audi A4 Catalytic Converter, OEM: AU9M1351DEC
1998-1999 Audi A4 DEC Catalytic Converter AU9M1351
Add for Price, Save 31%   NEW ITEM
OEM: AU9M1351, Item: 467454
  In Stock, Usually ships within 1 business day

This catalytic converter is compliant with C.A.R.B. rules, restrictions, and specifications. It can be installed on a vehicle in California as well as other municipalities that use this emissions standard. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact DEC directly for replacement.. (more)

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

Audi A4 Catalytic Converter, OEM: AU1365DEC
2005-2009 Audi A4 DEC Catalytic Converter AU1365
Add for Price, Save 31%   NEW ITEM
OEM: AU1365, Item: 467392
  In Stock, Usually ships within 1 business day

Installation of this aftermarket catalytic converter is prohibited by law in California by C.A.R.B., and may also not comply with emissions regulations in other municipalities in other parts of the US and Canada. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact DEC directly for.. (more)

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front

Audi A4 Catalytic Converter, OEM: AU9M1360BDEC
2001-2005 Audi A4 DEC Catalytic Converter AU9M1360B
555.75, Save 39%   NEW ITEM
OEM: AU9M1360B, Item: 994901
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 40300Eastern Catalytic
2001-2006 Audi A4 Eastern Catalytic Catalytic Converter 40300
300.85, Save 39%   NEW ITEM
OEM: 40300, Item: 1005004
  Only 8 left In Stock, Usually ships within 1 business day
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Audi A4 Catalytic Converter, OEM: 099-3021/0993021Bosal
1997-2006 Audi A4 Bosal Catalytic Converter 099-3021
201.05, Save 39%   NEW ITEM
OEM: 099-3021, Item: 1245022
  Only 8 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 099-0583/0990583Bosal
1996-1999 Audi A4 Bosal Catalytic Converter 099-0583
268.05, Save 39%   NEW ITEM
OEM: 099-0583, Item: 1244785
  Only 4 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

Audi A4 Catalytic Converter, OEM: 521031Bosal
1997-2000 Audi A4 Bosal Catalytic Converter 521031
282.65, Save 39%   NEW ITEM
OEM: 521031, Item: 1246904
  Only 3 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: AU1309DDEC
2002-2003 Audi A4 DEC Catalytic Converter AU1309D
338.85, Save 39%   NEW ITEM
OEM: AU1309D, Item: 994784
  Only 2 left In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Left

Audi A4 Catalytic Converter, OEM: 2821124Flowmaster
2007-2008 Audi A4 Flowmaster Catalytic Converter 2821124
87.15, Save 39%   NEW ITEM
OEM: 2821124, Item: 1444656
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 93251Walker
1997-1999 Audi A4 Walker Catalytic Converter 93251
87.15, Save 39%   NEW ITEM
OEM: 93251, Item: 1508673
  Only 1 left In Stock, Usually ships within 1 business day
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Vehicle Install Locations: Left, Right

Audi A4 Catalytic Converter, OEM: 93271Walker
2000-2006 Audi A4 Walker Catalytic Converter 93271
104.55, Save 39%   NEW ITEM
OEM: 93271, Item: 1508682
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 93263Walker
1997-1999 Audi A4 Walker Catalytic Converter 93263
106.25, Save 39%   NEW ITEM
OEM: 93263, Item: 1389207
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: AU91351DEC
1998-1999 Audi A4 DEC Catalytic Converter AU91351
379.55, Save 39%   NEW ITEM
OEM: AU91351, Item: 1431812
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

Audi A4 Catalytic Converter, OEM: AU9M1360DEC
1997-2000 Audi A4 DEC Catalytic Converter AU9M1360
326.85, Save 39%   NEW ITEM
OEM: AU9M1360, Item: 1254604
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 521054Bosal
1996-1999 Audi A4 Bosal Catalytic Converter 521054
303.55, Save 39%   NEW ITEM
OEM: 521054, Item: 1246906
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

Audi A4 Catalytic Converter, OEM: 448005
1997-2000 Audi A4 Magnaflow Catalytic Converter 448005
Add for Price, Save 14%   NEW ITEM
OEM: 448005, Item: 1226696
  Only 6 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 456034
2001-2005 Audi A4 Magnaflow Catalytic Converter 456034
Add for Price, Save 20%   NEW ITEM
OEM: 456034, Item: 1257942
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 2084186Flowmaster
1997-2006 Audi A4 Flowmaster Catalytic Converter 2084186
273.35, Save 39%   NEW ITEM
OEM: 2084186, Item: 1485636
  Only 6 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 99204HM
1996-1999, 2005-2008 Audi A4 Magnaflow Catalytic Converter 99204HM
Add for Price, Save 14%   NEW ITEM
OEM: 99204HM, Item: 1256349
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left, Right

Audi A4 Catalytic Converter, OEM: 2820120Flowmaster
1996-2006 Audi A4 Flowmaster Catalytic Converter 2820120
88.85, Save 39%   NEW ITEM
OEM: 2820120, Item: 1444657
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 22960
1997-2006 Audi A4 Magnaflow Catalytic Converter 22960
Add for Price, Save 21%   NEW ITEM
OEM: 22960, Item: 1256796
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 456062
2001-2005 Audi A4 Magnaflow Catalytic Converter 456062
Add for Price, Save 20%   NEW ITEM
OEM: 456062, Item: 1257955
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 456205
2006 Audi A4 Magnaflow Catalytic Converter 456205
Add for Price, Save 18%   NEW ITEM
OEM: 456205, Item: 1257966
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 99234HM
1997-2006 Audi A4 Magnaflow Catalytic Converter 99234HM
Add for Price, Save 14%   NEW ITEM
OEM: 99234HM, Item: 1256353
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 99355HM
2002-2004 Audi A4 Magnaflow Catalytic Converter 99355HM
Add for Price, Save 14%   NEW ITEM
OEM: 99355HM, Item: 1256385
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left, Right

Audi A4 Catalytic Converter, OEM: 418004
1996-1999 Audi A4 Magnaflow Catalytic Converter 418004
Add for Price, Save 20%   NEW ITEM
OEM: 418004, Item: 1259122
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left, Right

Audi A4 Catalytic Converter, OEM: 444204
2000-2001 Audi A4 Magnaflow Catalytic Converter 444204
Add for Price, Save 20%   NEW ITEM
OEM: 444204, Item: 1257074
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front Left, Front Right

Audi A4 Catalytic Converter, OEM: 444327
2000-2001 Audi A4 Magnaflow Catalytic Converter 444327
Add for Price, Save 20%   NEW ITEM
OEM: 444327, Item: 1257624
  Only 4 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

Audi A4 Catalytic Converter, OEM: 418005
1997-1999 Audi A4 Magnaflow Catalytic Converter 418005
Add for Price, Save 16%   NEW ITEM
OEM: 418005, Item: 1411103
  Only 2 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 24190
2005-2009 Audi A4 Magnaflow Catalytic Converter 24190
Add for Price, Save 21%   NEW ITEM
OEM: 24190, Item: 1257037
  Only 3 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 49163
2005-2009 Audi A4 Magnaflow Catalytic Converter 49163
Add for Price, Save 21%   NEW ITEM
OEM: 49163, Item: 1258350
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 51234
1997-2006 Audi A4 Magnaflow Catalytic Converter 51234
Add for Price, Save 9%   NEW ITEM
OEM: 51234, Item: 1256937
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 448605
1997-2000 Audi A4 Magnaflow Catalytic Converter 448605
Add for Price, Save 21%   NEW ITEM
OEM: 448605, Item: 1257837
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 51644
1997-2006 Audi A4 Magnaflow Catalytic Converter 51644
Add for Price, Save 21%   NEW ITEM
OEM: 51644, Item: 1257187
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 408004
1996-1997 Audi A4 Magnaflow Catalytic Converter 408004
Add for Price, Save 20%   NEW ITEM
OEM: 408004, Item: 1257554
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left, Right

Audi A4 Catalytic Converter, OEM: 444333
2000-2001 Audi A4 Magnaflow Catalytic Converter 444333
Add for Price, Save 20%   NEW ITEM
OEM: 444333, Item: 1298251
  Only 6 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

Audi A4 Catalytic Converter, OEM: 541174
2005 Audi A4 Magnaflow Catalytic Converter 541174
Add for Price, Save 20%   NEW ITEM
OEM: 541174, Item: 1258012
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front Left, Front Right

Audi A4 Catalytic Converter, OEM: 22962
1996-1999 Audi A4 Magnaflow Catalytic Converter 22962
Add for Price, Save 21%   NEW ITEM
OEM: 22962, Item: 1256997
  Only 6 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

Audi A4 Catalytic Converter, OEM: 542104
2005 Audi A4 Magnaflow Catalytic Converter 542104
Add for Price, Save 16%   NEW ITEM
OEM: 542104, Item: 1257192
  Only 2 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear Left, Rear Right

Audi A4 Catalytic Converter, OEM: 22963
1996-1999 Audi A4 Magnaflow Catalytic Converter 22963
Add for Price, Save 21%   NEW ITEM
OEM: 22963, Item: 1256996
  Only 3 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

Audi A4 Catalytic Converter, OEM: 448658
1996-1999 Audi A4 Magnaflow Catalytic Converter 448658
Add for Price, Save 20%   NEW ITEM
OEM: 448658, Item: 1257198
  Only 2 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

Audi A4 Catalytic Converter, OEM: 24176
2002-2004 Audi A4 Magnaflow Catalytic Converter 24176
Add for Price, Save 21%   NEW ITEM
OEM: 24176, Item: 1408310
  Only 1 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

Audi A4 Catalytic Converter, OEM: 448659
1996-1999 Audi A4 Magnaflow Catalytic Converter 448659
Add for Price, Save 21%   NEW ITEM
OEM: 448659, Item: 1257199
  Only 1 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Right

Audi A4 Catalytic Converter, OEM: 51204
2005-2008 Audi A4 Magnaflow Catalytic Converter 51204
Add for Price,   NEW ITEM
OEM: 51204, Item: 1256805
  Only 1 left In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 4B0254200
1997-2001 Audi A4 Emico Catalytic Converter 4B0254200
222.35, Save 39%   NO STOCK
OEM: 4B0254200, Item: 268384
  Restock date not known
Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter, OEM: 8D0253057H
1996-1999 Audi A4 Emico Catalytic Converter 8D0253057H
320.75, Save 39%   NO STOCK
OEM: 8D0253057H, Item: 268399
  Restock date not known
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left

Audi A4 Catalytic Converter, OEM: 51461
2002-2004 Audi A4 Magnaflow Catalytic Converter 51461
Add for Price, Save 19%   NO STOCK
OEM: 51461, Item: 1258697
  Restock date not known
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Vehicle Install Locations: Left

Audi A4 Catalytic Converter, OEM: 51355
2002-2004 Audi A4 Magnaflow Catalytic Converter 51355
Add for Price,   NEW ITEM
OEM: 51355, Item: 1256705
  In Stock, Usually ships within 1-2 business days

If C.A.R.B. number is not provided, item is not California legal

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left, Right

Audi A4 Catalytic Converter (New), OEM: 4B0 254 200 X/4B0254200XDEC
1997-1999 Audi A4 DEC Catalytic Converter (New) 4B0 254 200 X
384.85, Save 41%   NEW ITEM
OEM: 4B0 254 200 X, Item: 512871
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Audi A4 Catalytic Converter (New), OEM: 8E0 131 089 DX/8E0131089DXDEC
2001-2006 Audi A4 DEC Catalytic Converter (New) 8E0 131 089 DX
653.95, Save 41%   NEW ITEM
OEM: 8E0 131 089 DX, Item: 520052
  Only 3 left In Stock, Usually ships within 1 business day
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Audi A4 EPA Ultra Direct Fit Converter, OEM: 16087Walker
1997-2006 Audi A4 Walker EPA Ultra Direct Fit Converter 16087
291.95, Save 39%   NEW ITEM
OEM: 16087, Item: 660493
  Only 3 left In Stock, Usually ships within 1 business day
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Audi A4 Universal Catalytic Converter, OEM: 93251Walker
1997-1999 Audi A4 Walker Universal Catalytic Converter 93251
93.65, Save 39%   POPULAR
OEM: 93251, Item: 358374
  In Stock, Usually ships within 1 business day

Installation of this aftermarket catalytic converter is prohibited by law in California by C.A.R.B., and may also not comply with emissions regulations in other municipalities in other parts of the US and Canada. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact Walker directly for.. (more)

Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Left, Right

Audi A4 Universal Catalytic Converter, OEM: 93271Walker
2000-2006 Audi A4 Walker Universal Catalytic Converter 93271
112.35, Save 39%   NEW ITEM
OEM: 93271, Item: 358385
  In Stock, Usually ships within 1 business day

Installation of this aftermarket catalytic converter is prohibited by law in California by C.A.R.B., and may also not comply with emissions regulations in other municipalities in other parts of the US and Canada. Before purchasing a new catalytic converter, consult your local regulatory agency, emissions testing facility, or mechanic for approval. Federal laws require all warranty claims be processed by the manufacturer of this emissions control device. Please contact Walker directly for.. (more)

Select year, make, model above to verify this part fits your vehicle