Audi A4 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 submodels:

• 1997-2005: Base; 4 Cyl 1.8L; "Turbocharged"
• 1998-1998: Avant; 4 Cyl 1.8L; "Turbocharged"

• 2003-2005: Cabriolet; 4 Cyl 1.8L; "Turbocharged"

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

EASTERN CATALYTIC CONVERTER -- 49-state legal, OBDII, not for sale or use in California; Cannot be shipped to California addresses; 3-way catalyst style; 2.25 in. inlet; 2.25 in. outlet; Single inlet and outlet configuration; 6 in. x 4.25 in. x 10 in. body, 14 in. overall length; With oxygen sensor port; Without air tube provision; Ceramic honeycomb catalyst substrate; Oval metal casing; A low-emissions and large-capacity converter that contains additional substrate for heavy polluting vehicles, high mileage, or low emission engines; Constructed using Eastern's proprietary NANO technology chemistry that yields highly efficient loadings for lower cost and better converter efficiency; Features high flow design that maximizes engine output and catalytic efficiency; Non-directional and can be installed either way; Modification of the exhaust may be required; With Eastern's 5-year or 50,000-mile warranty.

Fits the following 1997-1999 Audi A4 submodels:

• 1997-1999: Base; 6 Cyl 2.8L;
• 1998-1998: Avant; 6 Cyl 2.8L;

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; 2 in. outlet; Single inlet and outlet configuration; 63 in. overall length; With two 18 mm style oxygen sensor ports; Standard converter type; Ceramic honeycomb catalyst substrate; Oval 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 1997-1999 Audi A4 submodels:

• 1997-1999: Base; 6 Cyl 2.8L;
• 1998-1998: Avant; 6 Cyl 2.8L;

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; 2 in. outlet; Single inlet and outlet configuration; 49 in. overall length; With two 18 mm style 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 1997-1999 Audi A4 submodels:

• 1997-1999: Base; 6 Cyl 2.8L;
• 1998-1998: Avant; 6 Cyl 2.8L;

EASTERN CATALYTIC CONVERTER -- 49-state legal, OBDII; Not for sale or use in California; Cannot be shipped to California addresses; 3-way catalyst style; 2 in. inlet; 2 in. outlet; Single inlet and outlet configuration; 6 in. x 4.25 in. x 10 in. body, 14 in. overall length; 6,000 lb. GVW; Without air tube provision and oxygen sensor port; Ceramic honeycomb catalyst substrate; Oval body; 409 stainless steel casing; Constructed using Eastern's proprietary NANO technology chemistry that yields highly efficient loadings for lower cost and better converter efficiency; Features high flow design that maximizes engine output and catalytic efficiency; Non-directional and can be installed either way; Modification of the exhaust may be required; With Eastern's 5-year or 50,000-mile warranty.

Fits the following 1997-1999 Audi A4 submodels:

• 1997-1999: Base; 6 Cyl 2.8L;
• 1998-1998: Avant; 6 Cyl 2.8L;

CATCO DIRECT FIT CATALYTIC CONVERTER -- 49-state legal, OBDII, not legal for sale or use in California; Cannot be shipped to California addresses; 3-bolt flange welded inlet; 3-bolt welded flange outlet; Single inlet and outlet configuration; 17 in. overall length; Includes heat shield and necessary gasket for a complete installation; 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 2001-2004 Audi A4 submodels:

• 2001-2004: Base; 4 Cyl 1.8L;
• 2003-2004: Cabriolet; 4 Cyl 1.8L;

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 submodels:

• 1998-1998: Avant; 4 Cyl 1.8L; "Turbocharged"
• 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 submodels:

• 1997-1999: Base; 4 Cyl 1.8L; "GAS, FI, AEB, Turbocharged, VIN B"
• 1998-1998: Avant; 4 Cyl 1.8L; "GAS, FI, AEB, Turbocharged, VIN B"

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

Fits 1 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 submodels:

• 1997-1999: Base; 4 Cyl 1.8L; "GAS, FI, AEB, Turbocharged, VIN B"
• 1998-1998: 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 submodels:

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

• 1998-1998: 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 2 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 2000-2005 Audi A4 submodels:

• 2000-2000: Base; 4 Cyl 1.8L; "GAS, FI, ATW, Turbocharged, VIN C"
• 2001-2001: Base; 4 Cyl 1.8L; "GAS, FI, AWM, Turbocharged, VIN C"

• 2002-2005: Base; 4 Cyl 1.8L; "GAS, FI, AMB, Turbocharged, VIN C"

• 2003-2005: Cabriolet; 4 Cyl 1.8L; "GAS, FI, AMB, Turbocharged"

• 2003-2005: Cabriolet; 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; 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 submodels:

• 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 submodels:

• 2002-2004: Base; 4 Cyl 1.8L; "Turbocharged"
• 2003-2004: Cabriolet; 4 Cyl 1.8L; "Turbocharged"

Not Legal in California

Fits the following 2002-2004 Audi A4 submodels:

• 2002-2004: Base; 6 Cyl 3.0L;
• 2003-2004: Cabriolet; 6 Cyl 3.0L;

BENCHMARK DIRECT FIT CATALYTIC CONVERTER ASSEMBLY -- Federal emissions, 49-state legal, not for sale or use in California; Cannot be shipped to California addresses; Single inlet and outlet configuration; Straight pipe assembly with one catalytic converter; Oval casing; 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 Benchmark's internal emissions laboratory to insure quality loadings which eliminate OBDII issues caused by many universal catalysts; With Benchmark's limited 2-year or 25,000-mile warranty.

Fits the following 2000-2001 Audi A4 submodels:

• 2000-2001: Base; 6 Cyl 2.8L;