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Catalytic Converter, For Models with 1.8L Turbocharged Eng California Emissions 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$137.80
Vehicle Fitment
  • 1997 - 2005 Audi A4 Base 4 Cyl 1.8L
  • 2003 - 2006 Audi A4 Cabriolet 4 Cyl 1.8L
  • 2004 - 2005 Audi A4 Avant 4 Cyl 1.8L
Product Details
Emissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 099-3021, 18059Inlet Type : Single (3-bolt welded flange) InletOutlet Type : Single (3-bolt welded flange) OutletOxygen Sensor Ports : 2 Sensor PortsWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$217.55
Vehicle Fitment
  • 2001 - 2005 Audi A4 Base 4 Cyl 1.8L
  • 2003 - 2006 Audi A4 Cabriolet 4 Cyl 1.8L
  • 2004 - 2005 Audi A4 Avant 4 Cyl 1.8L
Product Details
Components : (1) Catalytic Converter, (1) Before Catalytic Converter Oxygen Sensor, (1) After Catalytic Converter Oxygen SensorEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Set of 3Tube Material : Aluminized Steel TubeProduct Fit : Direct FitInterchange Part Number : 099-3021, 18059, 250-24432, 250-25004Inlet Type : Single (3-bolt welded flange) InletOutlet Type : Single (3-bolt welded flange) OutletOxygen Sensor Ports : 2 Sensor PortsWarranty : 5-year or 50,000-mile limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Driver Side
Vehicle Info Required to Guarantee Fit
$322.11
Vehicle Fitment
  • 2002 - 2004 Audi A4 Base 6 Cyl 3.0L
  • 2004 Audi A4 Avant 6 Cyl 3.0L 5-Speed, Automatic Transaxle, 43 3/8" O.A.L.
Product Details
Location : Driver SideSeries : Davico Exact FitEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitOxygen Sensor Included : NoAnticipated Ship Out Time : 4-5 business daysWarranty : 2-year or 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and welds
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Center
Vehicle Info Required to Guarantee Fit
$135.91
Vehicle Fitment
  • 1997 - 2005 Audi A4 Base 4 Cyl 1.8L
  • 2003 - 2006 Audi A4 Cabriolet 4 Cyl 1.8L
  • 2004 - 2005 Audi A4 Avant 4 Cyl 1.8L
Product Details
Location : CenterNotes : Without air tube port provisionSeries : Davico Exact FitEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitDimensions : 16.75 in. Overall LengthInlet Type : Single (3-bolt fixed flange) InletOutlet Type : Single (3-bolt fixed flange) OutletIncludes : GasketsOxygen Sensor Included : NoOxygen Sensor Ports : With Sensor PortsAnticipated Ship Out Time : 4-5 business daysWarranty : 2-year or 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and welds
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Passenger Side
Vehicle Info Required to Guarantee Fit
$334.45
Vehicle Fitment
  • 2000 - 2001 Audi A4 Base 6 Cyl 2.8L
Product Details
Location : Passenger SideSeries : Davico StandardEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitInlet Type : Single (3-bolt fixed flange) InletOutlet Type : Single (2 in. OD) OutletOxygen Sensor Included : NoOxygen Sensor Ports : 2 Sensor PortsAnticipated Ship Out Time : 4-5 business daysWarranty : 2-year or 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and welds
ECO II Catalytic Converter, Aluminized Steel, Semi-Universal (Welding Required), 48-State Legal (Cannot Ship to CA or NY)
Vehicle Info Required to Guarantee Fit
$72.58
Vehicle Fitment
  • 1997 - 1999 Audi A4 Base 6 Cyl 2.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L Undercar
Product Details
Location : Driver SideNotes : 10 in. in length with 2 in. inlet and outlet diameterSeries : Eastern ECO IIEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyTube Material : Aluminized Steel TubeProduct Fit : Semi-Universal (Welding Required)Anticipated Ship Out Time : Same day - 1 business dayWarranty : 5-year or 50,000-mile Eastern limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$297.39
Vehicle Fitment
  • 2001 - 2005 Audi A4 Base 4 Cyl 1.8L
  • 2003 - 2006 Audi A4 Cabriolet 4 Cyl 1.8L
  • 2004 - 2005 Audi A4 Avant 4 Cyl 1.8L
Product Details
Emissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitDimensions : 18 in. Overall LengthAnticipated Ship Out Time : Same day - 1 business dayWarranty : 5-year or 50,000-mile Eastern limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Driver Side
Vehicle Info Required to Guarantee Fit
$293.30
Vehicle Fitment
  • 1996 - 1999 Audi A4 Base 6 Cyl 2.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L Undercar
Product Details
Location : Driver SideEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitDimensions : 63 in. overall lengthAnticipated Ship Out Time : Same day - 1 business dayWarranty : 5-year or 50,000-mile Eastern limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Front
Vehicle Info Required to Guarantee Fit
$245.22
Vehicle Fitment
  • 2005 Audi A4 Avant 4 Cyl 1.8L Precat
  • 2005 Audi A4 Base 4 Cyl 1.8L Precat
  • 2005 - 2006 Audi A4 Cabriolet 4 Cyl 1.8L
  • 2006 Audi A4 Base 4 Cyl 2.0L Precat
  • 2009 Audi A4 Cabriolet 4 Cyl 2.0L Convertible, Precat
Product Details
Location : FrontEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : AssemblyTube Material : Aluminized Steel TubeProduct Fit : Direct FitDimensions : 17 in. Overall LengthAnticipated Ship Out Time : Same day - 1 business dayWarranty : 5-year or 50,000-mile Eastern limited warranty
Catalytic Converter - 50-State Legal - Center
Eastern®
Part Number: EAST630537
Vehicle Info Required to Guarantee Fit
$287.32
Vehicle Fitment
  • 1997 - 1999 Audi A4 Base 4 Cyl 1.8L
Product Details
Location : CenterEmissions : 50-State LegalRecommended Use : OE ReplacementQuantity Sold : AssemblyEO Number : D-665-17Tube Material : Aluminized Steel TubeProduct Fit : Direct FitAnticipated Ship Out Time : Same day - 1 business dayWarranty : 5-year or 50,000-mile Eastern limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$76.15
Vehicle Fitment
  • 1997 - 1999 Audi A4 Base 6 Cyl 2.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L Undercar
Product Details
Location : Passenger SideNotes : 10 in. in length with 2.25 in. inlet and outlet diameterSeries : Eastern ECO IIEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyTube Material : Aluminized Steel TubeProduct Fit : Semi-Universal (Welding Required)Dimensions : 14 in. Overall LengthInlet Type : Single (2.25 in. ID) InletOutlet Type : Single (2.25 in. ID) OutletAnticipated Ship Out Time : Same day - 1 business dayWarranty : 5-year or 50,000-mile Eastern limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$179.15
Vehicle Fitment
  • 2005 - 2008 Audi A4 Base 4 Cyl 2.0L
  • 2007 - 2008 Audi A4 Cabriolet 4 Cyl 2.0L
Product Details
Notes : 2 in. Inlet/OutletSeries : OEM Grade SeriesEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : Performance ReplacementQuantity Sold : Sold individuallyTube Material : Stainless Steel TubeProduct Fit : Semi-Universal (Welding Required)Anticipated Ship Out Time : 3-4 business daysWarranty : Magnaflow 5 year / 50,000 Mile Limited Warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$177.75
Vehicle Fitment
  • 2002 - 2004 Audi A4 Base 6 Cyl 3.0L
  • 2004 Audi A4 Avant 6 Cyl 3.0L Transaxle, 5-Speed, Automatic
Product Details
Location : Driver Or Passenger SideNotes : 4.25 in. Width, 11 in. Length, 15 in. Overall Length with 2.25 in. Inlet and outlet diameterEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : Performance ReplacementQuantity Sold : Sold individuallyTube Material : Stainless Steel TubeProduct Fit : Semi-Universal (Welding Required)Anticipated Ship Out Time : 3-4 business daysWarranty : Magnaflow 5 year / 50,000 Mile Limited Warranty
Catalytic Converter - 50-State Legal
Magnaflow®
Part Number: M66408004
Vehicle Info Required to Guarantee Fit
$247.58
Vehicle Fitment
  • 1996 - 1997 Audi A4 Base 6 Cyl 2.8L
Product Details
Location : Driver Or Passenger SideNotes : 2 in. Inlet/OutletEmissions : 50-State LegalRecommended Use : Performance ReplacementQuantity Sold : Sold individuallyEO Number : D-193-112Tube Material : Stainless Steel TubeProduct Fit : Semi-Universal (Welding Required)Anticipated Ship Out Time : 3-4 business daysWarranty : Magnaflow 25,000 Mile Limited Warranty
Catalytic Converter - 50-State Legal
Magnaflow®
Part Number: M66418004
Vehicle Info Required to Guarantee Fit
$330.41
Vehicle Fitment
  • 1996 - 1999 Audi A4 Base 6 Cyl 2.8L
  • 1998 Audi A4 Avant 6 Cyl 2.8L TLEV, EFN# WADXV02.8324
Product Details
Location : Driver Or Passenger SideNotes : 2 in. Inlet/OutletSeries : California SeriesEmissions : 50-State LegalRecommended Use : Performance ReplacementQuantity Sold : Sold individuallyEO Number : D-93-119Tube Material : Stainless Steel TubeProduct Fit : Semi-Universal (Welding Required)Anticipated Ship Out Time : 3-4 business daysWarranty : Magnaflow 5 year / 50,000 Mile Limited Warranty
Page 1 of 8 | Showing 1 - 15 of 114 results

Audi A4 Catalytic Converter Customer Reviews

The catalytic converter construction is functional but it was smaller than the original in the catalyst section of the converter.
Patricia Garcia
VERIFIED PURCHASER
Purchased on Jun 05, 2020
Items received on a timely manner. Thank you
Armando Valencia
VERIFIED PURCHASER
Purchased on May 31, 2020
This product fixed my truck. I had many problem with bogging down and exhaust but now the problem is fixed thanks a lot.
Purchased on Mar 14, 2014

Helpful Automotive Resources

P0059 Code: HO2S Heater Resistance (Bank 2, Sensor 1)
September 23, 2020
P0059 Code: HO2S Heater Resistance (Bank 2, Sensor 1)When a sensor sends data to the vehicle’s main computer that’s not within the expected range, the computer stores this information as a diagnostic trouble code (DTC). This code is a combination of letters and numbers that indicates the nature and source of the issue. DTCs are typically standardized but
P0058 Code: HO2S Heater Control Circuit High (Bank 2, Sensor 2)
September 23, 2020
P0058 Code: HO2S Heater Control Circuit High (Bank 2, Sensor 2)Trouble codes are a set of letters and numbers that indicate the nature and source of the issue in a vehicle. The P0058 code is a trouble code that you may have already encountered. Find out more about this code, its definition, causes, and symptoms with this short guide. What
P0057 Code: HO2S Heater Control Circuit Low (Bank 2, Sensor 2)
September 23, 2020
P0057 Code: HO2S Heater Control Circuit Low (Bank 2, Sensor 2)Diagnostic trouble code (DTC) P0057 stands for “HO2S Heater Control Circuit Low (Bank 2, Sensor 2).” This code sets when the powertrain control module (PCM) detects an issue with the oxygen (O2) sensor’s heater circuit. In some cases, this code may be also taken to mean that the PCM detects
P0056 Code: HO2S Heater Control Circuit Bank 2 Sensor 2
September 23, 2020
P0056 Code: HO2S Heater Control Circuit Bank 2 Sensor 2Bank 2 is the side of the engine that does not contain the #1 cylinder. The oxygen sensor 2 located on this bank is also known as the downstream oxygen sensor because it is located after the catalytic converter.
P0051 Code: HO2S Heater Control Circuit Low (Bank 2 Sensor 1)
September 23, 2020
P0051 Code: HO2S Heater Control Circuit Low (Bank 2 Sensor 1)The oxygen sensor referred to in this trouble code is the oxygen sensor #1 that’s located on Bank 2 in front of the catalytic converter. The side of the engine that does not contain cylinder #1 is called Bank 2.
P0055 Code: HO2S Heater Resistance (Bank 1, Sensor 3)
September 23, 2020
P0055 Code: HO2S Heater Resistance (Bank 1, Sensor 3)Diagnostic trouble code (DTC) P0055 code stands for “HO2S Heater Resistance (Bank 1, Sensor 3).” This code is set when the powertrain control module (PCM) has detected a potential issue in the heater circuit of the downstream or pre-catalytic converter oxygen sensor for bank 1. If the PCM detects a
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