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Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME) - Center
Vehicle Info Required to Guarantee Fit
$106.25
Vehicle Fitment
  • 1980 Audi 4000 Base 4 Cyl 1.6L
  • 1981 Audi 4000 Base 4 Cyl 1.7L
Product Details
Location : CenterSeries : Davico StandardEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyTube 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
$95.25
Vehicle Fitment
  • 1980 - 1983 Audi 4000 Base 5 Cyl 2.2L
  • 1982 - 1983 Audi 4000 Base 4 Cyl 1.6L
  • 1982 - 1983 Audi 4000 Base 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 GT 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 GT 5 Cyl 2.2L
  • 1982 - 1983 Audi 4000 S 4 Cyl 1.6L
  • 1982 - 1983 Audi 4000 S 4 Cyl 1.7L
  • 1982 - 1986 Audi 4000 S 5 Cyl 2.2L
  • 1984 - 1987 Audi 4000 S 4 Cyl 1.8L
Product Details
Location : CenterSeries : Davico StandardEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyTube Material : Aluminized Steel TubeProduct Fit : Direct FitDimensions : 11.5 in. overall lengthOxygen 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)
Vehicle Info Required to Guarantee Fit
$45.56
Vehicle Fitment
  • 1981 - 1983 Audi 4000 Base 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 GT 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 S 4 Cyl 1.7L
  • 1984 - 1987 Audi 4000 S 4 Cyl 1.8L
Product Details
Series : Eastern StandardEmissions : 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 - 50-State Legal
Magnaflow®
Part Number: M663321304
Vehicle Info Required to Guarantee Fit
$440.44
Vehicle Fitment
  • 1980 Audi 4000 Base 4 Cyl 1.6L OE Spec, Certification Level: PRE-OBDII, Aftermarket Style
  • 1980 - 1983 Audi 4000 Base 5 Cyl 2.2L
  • 1981 - 1983 Audi 4000 Base 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 GT 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 GT 5 Cyl 2.2L
  • 1982 - 1983 Audi 4000 S 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 S 5 Cyl 2.2L
  • 1985 - 1987 Audi 4000 S 4 Cyl 1.8L
Product Details
Series : California SeriesEmissions : 50-State LegalRecommended Use : OE ReplacementQuantity Sold : Sold individuallyTube Material : Stainless Steel TubeProduct Fit : Direct FitAnticipated Ship Out Time : 3-4 business daysWarranty : Magnaflow 5 year / 50,000 Mile Limited Warranty
Catalytic Converter - 50-State Legal
Magnaflow®
Part Number: M663321918
Vehicle Info Required to Guarantee Fit
$666.74
Vehicle Fitment
  • 1980 Audi 4000 Base 4 Cyl 1.6L Certification Level: PRE-OBDII
  • 1980 - 1983 Audi 4000 Base 5 Cyl 2.2L
  • 1981 - 1983 Audi 4000 Base 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 GT 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 GT 5 Cyl 2.2L
  • 1982 - 1983 Audi 4000 S 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 S 5 Cyl 2.2L
  • 1985 - 1987 Audi 4000 S 4 Cyl 1.8L
Product Details
Series : California SeriesEmissions : 50-State LegalRecommended Use : OE ReplacementQuantity Sold : Sold individuallyTube Material : Stainless Steel TubeProduct Fit : Direct FitAnticipated Ship Out Time : 3-4 business daysWarranty : Magnaflow 5 year / 50,000 Mile Limited Warranty
Catalytic Converter - 50-State Legal
Magnaflow®
Part Number: M66332303
Vehicle Info Required to Guarantee Fit
$216.84
Vehicle Fitment
  • 1980 Audi 4000 Base 4 Cyl 1.6L PRE-OBDII, Aftermarket Style
  • 1980 - 1983 Audi 4000 Base 5 Cyl 2.2L
  • 1981 - 1983 Audi 4000 Base 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 GT 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 GT 5 Cyl 2.2L
  • 1982 - 1983 Audi 4000 S 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 S 5 Cyl 2.2L
  • 1985 - 1987 Audi 4000 S 4 Cyl 1.8L
Product Details
Notes : 2 in. Inlet/OutletEmissions : 50-State LegalRecommended Use : Performance ReplacementQuantity Sold : Sold individuallyEO Number : D-193-117Tube 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 - 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$93.16
Vehicle Fitment
  • 1980 Audi 4000 Base 4 Cyl 1.6L
  • 1980 - 1983 Audi 4000 Base 5 Cyl 2.2L
  • 1981 - 1983 Audi 4000 Base 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 GT 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 GT 5 Cyl 2.2L
  • 1982 - 1983 Audi 4000 S 4 Cyl 1.7L
  • 1982 - 1986 Audi 4000 S 5 Cyl 2.2L
  • 1984 - 1987 Audi 4000 S 4 Cyl 1.8L
Product Details
Notes : 2 in. Inlet/OutletEmissions : 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 25,000 Mile Limited Warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$90.46
Vehicle Fitment
  • 1980 Audi 4000 Base 4 Cyl 1.6L
  • 1981 - 1983 Audi 4000 Base 4 Cyl 1.7L
  • 1984 - 1987 Audi 4000 S 4 Cyl 1.8L
  • 1985 - 1986 Audi 4000 S 5 Cyl 2.2L
Product Details
Location : CenterSeries : Walker UltraEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyTube Material : Stainless Steel TubeProduct Fit : Semi-Universal (Welding Required)Dimensions : 11.5 in. overall lengthAnticipated Ship Out Time : 2-3 business daysWarranty : 5-year or 50,000-mile Walker limited warranty
Catalytic Converter - 50-State Legal
Walker®
Part Number: WK81101
Vehicle Info Required to Guarantee Fit
$234.66
Vehicle Fitment
  • 1980 Audi 4000 Base 4 Cyl 1.6L
  • 1981 - 1983 Audi 4000 Base 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 Base 5 Cyl 2.2L
  • 1982 - 1983 Audi 4000 GT 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 GT 5 Cyl 2.2L
  • 1982 - 1983 Audi 4000 S 4 Cyl 1.7L
  • 1982 - 1986 Audi 4000 S 5 Cyl 2.2L
  • 1984 - 1987 Audi 4000 S 4 Cyl 1.8L
Product Details
Series : Walker CalCatEmissions : 50-State LegalRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-182-65Product Fit : Semi-Universal (Welding Required)Inlet Type : Pipe Connection InletOutlet Type : Pipe Connection OutletAnticipated Ship Out Time : Same day - 1 business dayWarranty : 5-year or 50,000-mile Walker limited warranty
Catalytic Converter - 47-State Legal (Cannot ship to CA, NY or ME)
Vehicle Info Required to Guarantee Fit
$163.18
Vehicle Fitment
  • 1980 Audi 4000 Base 4 Cyl 1.6L With Converter
  • 1980 - 1983 Audi 4000 Base 5 Cyl 2.2L
  • 1981 - 1983 Audi 4000 Base 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 GT 4 Cyl 1.7L
  • 1982 - 1983 Audi 4000 GT 5 Cyl 2.2L
  • 1982 - 1983 Audi 4000 S 4 Cyl 1.7L
  • 1982 - 1986 Audi 4000 S 5 Cyl 2.2L
  • 1984 - 1987 Audi 4000 S 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 FitAnticipated Ship Out Time : 1-2 Business DaysWarranty : 5-year or 50,000-mile for outer shell rust-through, 2-year for associated pipes, and 2-year unlimited mileage for emissions Bosal limited warranty
ECO II Catalytic Converter, Aluminized Steel, Universal (Welding Required), 48-State Legal (Cannot Ship to CA or NY)
Universal Fit
$77.45
Product Details
Series : 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 : Universal (Welding Required)Anticipated Ship Out Time : Same day - 1 business dayWarranty : 5-year or 50,000-mile Eastern limited warranty
ECO II Catalytic Converter, Aluminized Steel, Universal (Welding Required), 48-State Legal (Cannot Ship to CA or NY)
Universal Fit
$78.53
Product Details
Series : 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 : 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)
Universal Fit
$52.56
Product Details
Notes : 8 in. Body Length, Oval Body Shape, 2.3 in. Inlet and Outlet DiameterSeries : Eastern StandardEmissions : 47-State Legal (Cannot ship to CA, NY or ME)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyTube Material : Aluminized Steel TubeProduct Fit : Universal (Welding Required)Dimensions : 12 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.

ECO II Catalytic Converter, Aluminized Steel, Universal (Welding Required), 48-State Legal (Cannot Ship to CA or NY)
Universal Fit
$76.62
Product Details
Series : 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 : Universal (Welding Required)Anticipated Ship Out Time : Same day - 1 business dayWarranty : 5-year or 50,000-mile Eastern limited warranty
ECO II Catalytic Converter, Aluminized Steel, Universal (Welding Required), 48-State Legal (Cannot Ship to CA or NY)
Universal Fit
$117.14
Product Details
Series : 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 : Universal (Welding Required)Anticipated Ship Out Time : Same day - 1 business dayWarranty : 5-year or 50,000-mile Eastern limited warranty
Page 1 of 5 | Showing 1 - 15 of 63 results

Audi 4000 Catalytic Converter Customer Reviews

The unit was fairly easy to install. I had to add a 4" extension and when I located it where the O2 sensor was about in the same position as the original there wasn't clearance for the sensor. I had to rotate it to find a location where it would clear. Wound up having to be at an angle and as an engineer I like things square with the world. The converter worked and the car was able to pass inspection.
JAMES CALDWELL
VERIFIED PURCHASER
Purchased on May 12, 2020
It was a great product. The only problem was the original had the pipes coming straight out on both sides
Bobby Smith
VERIFIED PURCHASER
Purchased on May 01, 2020

Helpful Automotive Resources

P0036 Code: P0036 HO2S Heater Control Circuit (Bank 1 Sensor 2)
September 17, 2020
P0036 Code: P0036 HO2S Heater Control Circuit (Bank 1 Sensor 2)The downstream (post-converter) HO2S primarily gets used for post catalyst monitoring. It does this by checking the oxygen content of the exhaust gas after exiting the catalytic converter. Each HO2S compares the oxygen content of the surrounding air with the oxygen content in the exhaust stream.
P0431 Code: Warm Up Catalytic Converter, Bank 2—Efficiency Below Threshold
September 16, 2020
P0431 Code: Warm Up Catalytic Converter, Bank 2—Efficiency Below ThresholdCatalytic converter efficiency is monitored using upstream and downstream oxygen sensors. Most of these sensors contain zirconium dioxide-sensing elements enclosed by vented steel housings. These are connected to the lead wires in the oxygen sensor wiring harnesses via platinum electrodes. The PCM will store code P0431 if it reads that
P2198 Code: O2 Sensor Signal Biased/Stuck Rich (Bank 2 Sensor 1)
September 16, 2020
P2198 Code: O2 Sensor Signal Biased/Stuck Rich (Bank 2 Sensor 1)Identifying the underlying cause of the P2198 code can be difficult, especially if you’re not confident with your automotive knowledge. In most cases, it would be best to bring your vehicle to an auto repair shop and seek the help of a professional for an accurate diagnosis.
P0157 Code: Oxygen Sensor Circuit Low Voltage (Bank 2, Sensor 2)
September 16, 2020
P0157 Code: Oxygen Sensor Circuit Low Voltage (Bank 2, Sensor 2)The P0157 code is typically triggered when the powertrain control module (PCM) has detected that the oxygen sensor voltage stayed below the expected value for more than preset time. The voltage and timeline may differ between various makes and models.
September 16, 2020
P0422: Catalyst 2 Efficiency Below Threshold (Bank 1)The powertrain control module (PCM) tracks the switching frequency of the heated oxygen sensors 1 and 2 (front and rear sensors). A functional three way catalyst converter typically indicates a low switching frequency of heated oxygen sensor 2. The frequency increases as the converter deteriorates.
P0151 Code: O2 Sensor Circuit Low Voltage (Bank 2, Sensor 1)
September 16, 2020
P0151 Code: O2 Sensor Circuit Low Voltage (Bank 2, Sensor 1)The code P0151 is similar to P0136, P0137, and P0131. This code warns about a fault with the upstream oxygen sensor on Bank 2. Bank 2 Sensor 1 is tucked in front of the catalytic converter. It analyzes the amount of oxygen in the exhaust before it enters the catalytic
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