$20 Off $250 / $40 Off $500 / $80 Off $1,000 - Use Promo Code: CLASSIC

$20 Off $250 / $40 Off $500 / $80 Off $1,000
Use Promo Code: CLASSIC

Save Now on Select Restoration Parts & Supplies!

Filters

  • In Stock
  • Brand
  • Make/Model
  • Make/Engine
  • Inlet Quantity
  • Inlet Diameter (in.)
  • Outlet Quantity
  • Outlet Diameter (in.)
  • Converter Outlet Attachment
  • Converter Substrate Material
  • Converter Overall Length (in.)
  • Remanufactured
  • Heat Shield
  • Price Range
  • Filter Options
  • Savings Central

Selected Filters

Filter Results by Vehicle

Loading...

Availability

  • Filters

  • Brand
  • Make/Model
  • Make/Engine
  • Inlet Quantity
  • Inlet Diameter (in.)
  • Outlet Quantity
  • Outlet Diameter (in.)
  • Converter Outlet Attachment
  • Converter Substrate Material
  • Converter Overall Length (in.)
  • Remanufactured
  • Heat Shield
  • Price Range
  • Filter Options
  • Savings Central

AUDI Catalytic Converters

Showing In Stock Items. Show All 14 Items.

Individual Parts
Part Groups

Results 1 - 10 of 10

AP Exhaust Direct-Fit Catalytic Converters for 2000-2004 A6 QUATTRO, 2001-2005 ALLROAD QUATTRO - 642879

Made in the USA AP Exhaust Direct-Fit Catalytic Converters for 2000-2004 A6 QUATTRO, 2001-2005 ALLROAD QUATTRO - 642879

AP Exhaust Direct-Fit Catalytic Converters for 2000-2004 A6 QUATTRO, 2001-2005 ALLROAD QUATTRO - 642879

Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, Ceramic Substrate, 42.00 in. Overall Length, Right, Audi, 2.7L, Each

Part Number: APH-642879

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Catco Federal/EPA Direct-Fit Catalytic Converters for 2000-2004 A6 QUATTRO, 2001-2005 ALLROAD QUATTRO - 5184

Made in the USA Catco Federal/EPA Direct-Fit Catalytic Converters for 2000-2004 A6 QUATTRO, 2001-2005 ALLROAD QUATTRO - 5184

Catco Federal/EPA Direct-Fit Catalytic Converters for 2000-2004 A6 QUATTRO, 2001-2005 ALLROAD QUATTRO - 5184

EPA OBDII Direct Fit Converter

Part Number: CTO-5184

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 4, 2026 if ordered today

AP Exhaust Direct-Fit Catalytic Converters for 2002-2005 A4 QUATTRO - 642012

Made in the USA AP Exhaust Direct-Fit Catalytic Converters for 2002-2005 A4 QUATTRO - 642012

AP Exhaust Direct-Fit Catalytic Converters for 2002-2005 A4 QUATTRO - 642012

Catalytic Converters, Direct-Fit, Stock Flange Inlet, 2.12 in. Slip Fit Outlet, Ceramic Honeycomb Substrate, 45.50 in. Length, Right, Audi, 3.0L, Each

Part Number: APH-642012

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 6, 2026 if ordered today

Catco Federal/EPA Direct-Fit Catalytic Converters for 2002-2005 A4 QUATTRO - 5102

Made in the USA Catco Federal/EPA Direct-Fit Catalytic Converters for 2002-2005 A4 QUATTRO - 5102

Catco Federal/EPA Direct-Fit Catalytic Converters for 2002-2005 A4 QUATTRO - 5102

Catalytic Converters, Catco Federal/EPA Direct-Fit Catalytic Converter, Stainless Steel, Audi, Each

Part Number: CTO-5102

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 2, 2026 if ordered today

Catco Federal/EPA Direct-Fit Catalytic Converters for 2002-2004 A4, A4 QUATTRO - 4458

Made in the USA Catco Federal/EPA Direct-Fit Catalytic Converters for 2002-2004 A4, A4 QUATTRO - 4458

Catco Federal/EPA Direct-Fit Catalytic Converters for 2002-2004 A4, A4 QUATTRO - 4458

Catalytic Converters, Federal/EPA Direct-Fit Catalytic Converter, Stainless Steel, Audi, Each

Part Number: CTO-4458

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 2, 2026 if ordered today

AP Exhaust Direct-Fit Catalytic Converters for 2002-2004 A4, A4 QUATTRO - 642211

Made in the USA AP Exhaust Direct-Fit Catalytic Converters for 2002-2004 A4, A4 QUATTRO - 642211

AP Exhaust Direct-Fit Catalytic Converters for 2002-2004 A4, A4 QUATTRO - 642211

Catalytic Converters, Direct-Fit, Stock Flange Inlet, 2.17 in. Slip Fit Outlet, Ceramic Honeycomb Substrate, 45.50 in. Length, Right, Audi, 3.0L, Each

Part Number: APH-642211

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 6, 2026 if ordered today

AP Exhaust Direct-Fit Catalytic Converters for 2003-2004 A6 QUATTRO, 2003-2005 ALLROAD QUATTRO - 642894

AP Exhaust Direct-Fit Catalytic Converters for 2003-2004 A6 QUATTRO, 2003-2005 ALLROAD QUATTRO - 642894

AP Exhaust Direct-Fit Catalytic Converters for 2003-2004 A6 QUATTRO, 2003-2005 ALLROAD QUATTRO - 642894

Catalytic Converters, Direct-Fit, Stock Flange Inlet, 1.97 in. Slip Fit Outlet, 43.50 in. Overall Length, Right, Audi, 2.7L, Each

Part Number: APH-642894

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

AP Exhaust Direct-Fit Catalytic Converters for 2003-2005 ALLROAD QUATTRO - 643128

AP Exhaust Direct-Fit Catalytic Converters for 2003-2005 ALLROAD QUATTRO - 643128

AP Exhaust Direct-Fit Catalytic Converters for 2003-2005 ALLROAD QUATTRO - 643128

Catalytic Converters, Direct-Fit, Stock Flange Inlet, 1.97 in. Slip Fit Outlet, Ceramic Honeycomb Substrate, 50.50 in. Length, Right, Audi, 4.2L, Each

Part Number: APH-643128

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 9, 2026 if ordered today

Catco Federal/EPA Direct-Fit Catalytic Converters for 2003-2004 A6 QUATTRO, 2003-2005 ALLROAD QUATTRO - 5199

Made in the USA Catco Federal/EPA Direct-Fit Catalytic Converters for 2003-2004 A6 QUATTRO, 2003-2005 ALLROAD QUATTRO - 5199

Catco Federal/EPA Direct-Fit Catalytic Converters for 2003-2004 A6 QUATTRO, 2003-2005 ALLROAD QUATTRO - 5199

EPA OBDII Direct Fit Converter

Part Number: CTO-5199

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 4, 2026 if ordered today

Catco Federal/EPA Direct-Fit Catalytic Converters for 2003-2005 ALLROAD QUATTRO - 5063

Made in the USA Catco Federal/EPA Direct-Fit Catalytic Converters for 2003-2005 ALLROAD QUATTRO - 5063

Catco Federal/EPA Direct-Fit Catalytic Converters for 2003-2005 ALLROAD QUATTRO - 5063

Catalytic Converters, Catco Federal/EPA Direct-Fit Catalytic Converter, Stainless Steel, Audi, Each

Part Number: CTO-5063

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 4, 2026 if ordered today

  • 1
  • Page 1 of 1

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.

Summit Racing Speedcard. Synchrony Car Care.

Summit Racing Equipment SpeedCard

Jumpstart Your Next Project!

View Details|See if you Prequalify