Audi A4 Quattro Catalytic Converter

EASTERN DIRECT FIT CATALYTIC CONVERTER -- 49-state legal, OBDII; Not for sale or use in California; Cannot be shipped to California addresses; 3-way catalyst style; 3-bolt welded type inlet; 3-bolt type outlet; Single inlet and outlet configuration; 17 in. overall length; With two 18 mm oxygen sensor ports; Standard converter type; Ceramic honeycomb catalyst substrate; Round body; 409 stainless steel casing; Built to exact OE dimensions with OE quality flanges and flex assemblies; Features Eastern's proprietary catalytic chemistry and high flow design that maximizes engine output and catalytic efficiency; Easy installation; No welding and cutting required; With Eastern's 5-year or 50,000-mile warranty.

Fits the following 1997-2005 Audi A4 Quattro submodels:

• 1997-2005: Base; 4 Cyl 1.8L; "Turbocharged"
• 1999-2005: Avant; 4 Cyl 1.8L; "Turbocharged"

EASTERN DIRECT FIT CATALYTIC CONVERTER ASSEMBLY -- 49-state legal, OBDII, not for sale or use in California; Cannot be shipped to California addresses; 3-way catalyst style; 3-bolt welded type inlet; 2.15625 in. outlet; Single inlet and outlet configuration; 43.5 in. overall length; With two 18 mm oxygen sensor ports; Straight pipe assembly with one catalytic converter; Ceramic honeycomb catalyst substrate; Oval metal casing; Built to exact OE dimensions with OE quality flanges and flex assemblies; Features Eastern's proprietary catalytic chemistry and high flow design that maximizes engine output and catalytic efficiency; Easy installation; No welding and cutting required; With Eastern's 5-year or 50,000-mile warranty.

Fits the following 2002-2003 Audi A4 Quattro submodels:

• 2002-2003: Avant; 6 Cyl 3.0L;
• 2002-2003: Base; 6 Cyl 3.0L;

EASTERN DIRECT FIT CATALYTIC CONVERTER ASSEMBLY -- 49-state legal, OBDII, not for sale or use in California; Cannot be shipped to California addresses; 3-way catalyst style; 3-bolt welded type inlet; 2.15625 in. outlet; Single inlet and outlet configuration; 43.5 in. overall length; With two 18 mm oxygen sensor ports; Straight pipe assembly with one catalytic converter; Ceramic honeycomb catalyst substrate; Oval metal casing; Built to exact OE dimensions with OE quality flanges and flex assemblies; Features Eastern's proprietary catalytic chemistry and high flow design that maximizes engine output and catalytic efficiency; Easy installation; No welding and cutting required; With Eastern's 5-year or 50,000-mile warranty.

Fits the following 2002-2003 Audi A4 Quattro submodels:

• 2002-2003: Avant; 6 Cyl 3.0L;
• 2002-2003: Base; 6 Cyl 3.0L;

CATCO DIRECT FIT CATALYTIC CONVERTER -- 50-state legal, designed specifically to meet C.A.R.B. standards for California; Flange inlet and outlet; Single inlet and outlet configuration; Ceramic monolith catalyst substrate; Oval stainless steel casing; Designed with 409 stainless steel pipes and shell for longer life; With Catco's 5-year or 50,000-mile warranty on converter body and 25,000-mile warranty on emissions.

Fits the following 1998 Audi A4 Quattro submodels:

• 1998-1998: Base; 4 Cyl 1.8L; "Turbocharged"

MAGNAFLOW 46000 SERIES CATALYTIC CONVERTER -- 50-state legal on selected applications; 3-way catalyst style; 2.25 in. inlet and outlet; Single center inlet and outlet configuration; 8 in. body length, 5.125 in. width, 13 in. overall length; Ceramic honeycomb catalyst substrate; Round stainless steel casing; Features Catalyst System Monitor Advanced Response Technology that eliminates false fail catalyst-related diagnostics codes by addressing specific oxygen storage capacity needs; The main benefit of this catalytic converter is that one unit may cover a wide variety of vehicle makes and models; Installing this converter often requires the use of welding, cutting, and tube bending equipment that is readily available to most professional installers; With Magnaflow's limited warranty.

Fits the following 1997-2000 Audi A4 Quattro submodels:

• 1997-2000: Base; 4 Cyl 1.8L; "GAS, FI, AEB, Turbocharged, VIN B"
• 1999-2000: Avant; 4 Cyl 1.8L; "GAS, FI, AEB, Turbocharged, VIN B"

• 2000-2000: Avant; 4 Cyl 1.8L; "GAS, FI, ATW, Turbocharged, VIN C"

• 2000-2000: Base; 4 Cyl 1.8L; "GAS, FI, ATW, Turbocharged, VIN C"

Fits 2 more submodels. (Show all) Show less info

MAGNAFLOW 99000 SERIES CATALYTIC CONVERTER -- 49-state legal, OBDII, EPA compliant, not for sale or use in California; Cannot be shipped to California addresses; 3-way catalyst style; 2.25 in. inlet and outlet; Single center inlet and outlet configuration; 9 in. body length, 5.125 in. wide, 13 in. overall length; 6,375 lb. GVW; Includes stainless steel heat shield; Heavy metal loaded catalyst; Round stainless steel casing; The main benefit of this catalytic converter is that one unit may cover a wide variety of vehicle makes and models; Installing this converter often requires the use of welding, cutting, and tube bending equipment that is readily available to most professional installers; With Magnaflow's limited warranty.

Fits the following 1997-1999 Audi A4 Quattro submodels:

• 1997-1999: Base; 4 Cyl 1.8L; "GAS, FI, AEB, Turbocharged, VIN B"
• 1999-1999: Avant; 4 Cyl 1.8L; "GAS, FI, AEB, Turbocharged, VIN B"

MAGNAFLOW 99000 SERIES CATALYTIC CONVERTER -- 49-state legal, OBDII, EPA compliant, not for sale or use in California; Cannot be shipped to California addresses; 3-way catalyst style; 2 in. inlet and outlet; Single center inlet and outlet configuration; 9 in. body length, 5.125 in. wide, 13 in. overall length; 6,375 lb. GVW; Includes stainless steel heat shield; Heavy metal loaded catalyst; Round stainless steel casing; The main benefit of this catalytic converter is that one unit may cover a wide variety of vehicle makes and models; Installing this converter often requires the use of welding, cutting, and tube bending equipment that is readily available to most professional installers; With Magnaflow's limited warranty.

Fits the following 1996-1999 Audi A4 Quattro submodels:

• 1996-1997: Base; 6 Cyl 2.8L; "Gas, FI, AFC, Naturally Aspirated, VIN A"
• 1998-1999: Avant; 6 Cyl 2.8L; "Gas, FI, AHA, Naturally Aspirated, VIN D"

• 1998-1999: Base; 6 Cyl 2.8L; "Gas, FI, AHA, Naturally Aspirated, VIN D"

Fits 1 more submodels. (Show all) Show less info

MAGNAFLOW DIRECT FIT CATALYTIC CONVERTER -- Designed For Easy Bolt-On Installation For The Professional Installer, Welding, Cutting And Tube Bending Equipment Is Not Required, Not For Use On California Registered Vehicles, With Manufacturer's Limited Warranty

Fits the following 2001-2002 Audi A4 Quattro submodels:

• 2001-2001: Avant; 4 Cyl 1.8L; "GAS, FI, AWM, Turbocharged"
• 2001-2001: Avant; 4 Cyl 1.8L; "GAS, FI, AWM, Turbocharged, VIN C"

• 2001-2001: Base; 4 Cyl 1.8L; "GAS, FI, AWM, Turbocharged, VIN C"

• 2002-2002: Avant; 4 Cyl 1.8L; "GAS, FI, AMB, Turbocharged, VIN C"

• 2002-2002: Base; 4 Cyl 1.8L; "GAS, FI, AMB, Turbocharged, VIN C"

Fits 3 more submodels. (Show all) Show less info

DAVICO DIRECT FIT CATALYTIC CONVERTER -- 49-state legal, not for sale or use in California; Cannot be shipped to California addresses; 49 in. overall length; Gaskets and spring-bolt kits are supplied when necessary; Does not require cutting, sliding, clamping, or welding for installation; With Davico's 5-year or 50,000-mile warranty on converter shell and 1-year warranty on craftsmanship and materials after the installation date of the unit.

Fits the following 1996-1999 Audi A4 Quattro submodels:

• 1996-1999: Base; 6 Cyl 2.8L;
• 1998-1999: Avant; 6 Cyl 2.8L;

DAVICO DIRECT FIT CATALYTIC CONVERTER -- 49-state legal, not for sale or use in California; Cannot be shipped to California addresses; 63 in. overall length; Gaskets and spring-bolt kits are supplied when necessary; Does not require cutting, sliding, clamping, or welding for installation; With Davico's 5-year or 50,000-mile warranty on converter shell and 1-year warranty on craftsmanship and materials after the installation date of the unit.

Fits the following 1996-1999 Audi A4 Quattro submodels:

• 1996-1999: Base; 6 Cyl 2.8L;
• 1998-1999: Avant; 6 Cyl 2.8L;

DAVICO DIRECT FIT CATALYTIC CONVERTER -- 49-state legal, not for sale or use in California; Cannot be shipped to California addresses; 63.75 in. overall length; Gaskets and spring-bolt kits are supplied when necessary; Does not require cutting, sliding, clamping, or welding for installation; With Davico's 5-year or 50,000-mile warranty on converter shell and 1-year warranty on craftsmanship and materials after the installation date of the unit.

Fits the following 2000-2001 Audi A4 Quattro submodels:

• 2000-2001: Avant; 6 Cyl 2.8L;
• 2000-2001: Base; 6 Cyl 2.8L;

DAVICO DIRECT FIT CATALYTIC CONVERTER -- 49-state legal, not for sale or use in California; Cannot be shipped to California addresses; Gaskets and spring-bolt kits are supplied when necessary; Does not require cutting, sliding, clamping, or welding for installation; With Davico's 5-year or 50,000-mile warranty on converter shell and 1-year warranty on craftsmanship and materials after the installation date of the unit.

Fits the following 2000-2001 Audi A4 Quattro submodels:

• 2000-2001: Avant; 6 Cyl 2.8L;
• 2000-2001: Base; 6 Cyl 2.8L;

DAVICO DIRECT FIT CATALYTIC CONVERTER -- 49-state legal, not for sale or use in California; Cannot be shipped to California addresses; 16.5 in. overall length; Gaskets and spring-bolt kits are supplied when necessary; Does not require cutting, sliding, clamping, or welding for installation; With Davico's 5-year or 50,000-mile warranty on converter shell and 1-year warranty on craftsmanship and materials after the installation date of the unit.

Fits the following 2000-2001 Audi A4 Quattro submodels:

• 2000-2001: Avant; 4 Cyl 1.8L; "Turbocharged"
• 2000-2001: Base; 4 Cyl 1.8L; "Turbocharged"

DAVICO DIRECT FIT CATALYTIC CONVERTER -- 49-state legal, not for sale or use in California; Cannot be shipped to California addresses; 16.5 in. overall length; Gaskets and spring-bolt kits are supplied when necessary; Does not require cutting, sliding, clamping, or welding for installation; With Davico's 5-year or 50,000-mile warranty on converter shell and 1-year warranty on craftsmanship and materials after the installation date of the unit.

Fits the following 2002-2004 Audi A4 Quattro submodels:

• 2002-2004: Avant; 4 Cyl 1.8L; "Turbocharged"
• 2002-2004: Base; 4 Cyl 1.8L; "Turbocharged"

• 2004-2004: Cabriolet; 4 Cyl 1.8L; "Turbocharged"

Fits 1 more submodels. (Show all) Show less info

DEC DIRECT-FIT CATALYTIC CONVERTER -- Driver Side, Considered To Be The Industry's Standard Replacement Catalytic Converter, Recognized Leader In Fitment And Durability, Features Perfect Fit And Repeatability, Its Performance Results Are Continually Monitored By DEC's Internal Emissions Laboratory To Insure Quality Loadings Which Eliminate OBDII Issues Caused By Many Universal Catalysts, For Federal Emissions Vehicle, Not Legal For OBDII In California

Fits the following 2002-2003 Audi A4 Quattro submodels:

• 2002-2003: Avant; 6 Cyl 3.0L; "AVK"
• 2002-2003: Base; 6 Cyl 3.0L; "AVK"