Audi A4 Catalytic Converters
- Davico®Direct Fit Catalytic Converter (17196)Catalytic Converter (17196) by Davico®. Converter Configuration: Direct Fit. Position: Center. With 2 O2 Sensor Ports. Catalytic Converter Overall Length: 17". This direct-fit catalytic converter by Davico will be a great solution to...$416.36
- CATCO®Direct Fit Catalytic Converter and Pipe Assembly (5231)Catalytic Converter and Pipe Assembly (5231) by CATCO®. Converter Configuration: Direct Fit. Position: Front. With 2 O2 Sensor Ports. Catalytic Converter Overall Length: 24". Designed and manufactured with innovative fabrication...$707.96
- Davico®Direct Fit Catalytic Converter and Pipe Assembly (18319)Catalytic Converter and Pipe Assembly (18319) by Davico®. Converter Configuration: Direct Fit. Position: Driver Side. With 2 O2 Sensor Ports. Catalytic Converter Overall Length: 45". Gaskets Not Required. This direct-fit catalytic...$588.32
- Davico®Direct Fit Catalytic Converter and Pipe Assembly (46183)Catalytic Converter and Pipe Assembly (46183) by Davico®. Converter Configuration: Direct Fit. Position: Driver Side. With 2 O2 Sensor Ports. Catalytic Converter Overall Length: 63". Dealer Alternative. This direct-fit catalytic...$469.10
- Davico®Direct Fit Catalytic Converter and Pipe Assembly (16184)Catalytic Converter and Pipe Assembly (16184) by Davico®. Converter Configuration: Direct Fit. Position: Passenger Side. Catalytic Converter Overall Length: 49.75". This direct-fit catalytic converter by Davico will be a great solution...$348.78
- Davico®Direct Fit Catalytic Converter and Pipe Assembly (18314)Catalytic Converter and Pipe Assembly (18314) by Davico®. Converter Configuration: Direct Fit. Position: Passenger Side. With 2 O2 Sensor Ports. Catalytic Converter Overall Length: 45". This direct-fit catalytic converter by Davico will...$417.50
- iD Select®ECO II Universal Fit Oval Body Catalytic Converter (83164)ECO II Catalytic Converter (83164) by iD Select®. Converter Configuration: Universal Fit. Position: Rear. Location: Undercar. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2"....$112.08
- iD Select®ECO II Universal Fit Round Body Catalytic Converter (82725)ECO II Catalytic Converter (82725) by iD Select®. Converter Configuration: Universal Fit. Position: Front. Location: Undercar. Catalytic Converter Body Shape: Round. Without Air Tube. With 1 O2 Sensor Port. Catalytic Inlet Diameter:...$134.02
- AP Exhaust®Direct Fit Catalytic Converter and Pipe Assembly (644025)Catalytic Converter and Pipe Assembly (644025) by AP Exhaust®. Converter Configuration: Direct Fit. Position: Front. With 2 O2 Sensor Ports. Catalytic Converter Overall Length: 24". Today’s exhaust performance market continues to...$596.79
- AP Exhaust®Direct Fit Catalytic Converter (770541)Catalytic Converter (770541) by AP Exhaust®. Converter Configuration: Direct Fit. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product demand is not...$1,173.44
- AP Exhaust®Direct Fit Catalytic Converter (642018)Catalytic Converter (642018) by AP Exhaust®. Converter Configuration: Direct Fit. Catalytic Converter Overall Length: 17.5". With 2 O2 Sensor Ports. Today’s exhaust performance market continues to cover a broad spectrum of vehicles....5-year/50,000-mile warranty on converter body25,000-mile warranty on emissions$524.06
- AP Exhaust®Direct Fit Catalytic Converter (642688)Catalytic Converter (642688) by AP Exhaust®. Converter Configuration: Direct Fit. Without Air Tube. With 2 O2 Sensor Ports. Catalytic Converter Overall Length: 17". Today’s exhaust performance market continues to cover a broad...$546.66
- Walker®Ultra™ Direct Fit Round Body Catalytic Converter (16595)Ultra™ Catalytic Converter (16595) by Walker®. Converter Configuration: Direct Fit. Position: Front. Catalytic Converter Body Shape: Round. With 1 Inlet. With O2 Sensor Port. Catalytic Converter Overall Length: 23.25". Walker is an...$679.39
- Walker®Ultra™ Direct Fit Round Body Catalytic Converter (16087)Ultra™ Catalytic Converter (16087) by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. With O2 Sensor Port. Catalytic Converter Overall Length: 15.375". Walker is an OE supplier to...$483.15
- MagnaFlow®Heavy Metal Universal Fit Round Body Catalytic Converter (99355HM)Heavy Metal Catalytic Converter (99355HM) by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. With Midbed O2 Sensor Port. Catalytic Inlet Diameter: 2.25". Catalytic Outlet...$188.00
- MagnaFlow®Heavy Metal Universal Fit Round Body Catalytic Converter (99234HM)Heavy Metal Catalytic Converter (99234HM) by MagnaFlow®. Converter Configuration: Universal Fit. Position: Front Passenger Side. Catalytic Converter Body Shape: Round. Without Air Tube. With Post-Cat O2 Sensor Port. Catalytic Inlet...$182.00
- MagnaFlow®Heavy Metal Universal Fit Round Body Catalytic Converter (99204HM)Heavy Metal Catalytic Converter (99204HM) by MagnaFlow®. Converter Configuration: Universal Fit. Position: Passenger Side. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2"....$178.00
- MagnaFlow®OBDII Universal Fit Oval Body Catalytic Converter (448304)OBDII Catalytic Converter (448304) by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic Outlet Diameter: 2"....$718.00
- MagnaFlow®OBDII Universal Fit Oval Body Catalytic Converter (448305)OBDII Catalytic Converter (448305) by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.25". Catalytic Outlet Diameter: 2.25"....$718.00
- MagnaFlow®OBDII Universal Fit Round Body Catalytic Converter (456205)OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.25". Catalytic Outlet Diameter: 2.25"....$854.00
- MagnaFlow®OBDII Universal Fit Round Body Catalytic Converter (418005)OBDII Catalytic Converter (418005) by MagnaFlow®. Converter Configuration: Universal Fit. Position: Passenger Side. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.25"....$438.00
- MagnaFlow®OBDII Universal Fit Round Body Catalytic Converter (418004)OBDII Catalytic Converter (418004) by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic Outlet Diameter: 2"....$438.00
- MagnaFlow®OBDII Universal Fit Round Body Catalytic Converter (444205)OBDII Catalytic Converter (444205) by MagnaFlow®. Converter Configuration: Universal Fit. Position: Front. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.25". Catalytic...$378.00
- MagnaFlow®OBDII Universal Fit Round Body Catalytic Converter (444204)OBDII Catalytic Converter (444204) by MagnaFlow®. Converter Configuration: Universal Fit. Position: Front Driver Side. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2"....$428.00
- MagnaFlow®OBDII Universal Fit Round Body Catalytic Converter (408004)OBDII Catalytic Converter (408004) by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic Outlet Diameter: 2"....$298.00
- MagnaFlow®OBDII Universal Fit Round Body Catalytic Converter (441205)OBDII Catalytic Converter (441205) by MagnaFlow®. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.25". Catalytic Outlet...$516.00
- MagnaFlow®OEM Grade Universal Fit Round Body Catalytic Converter (51355)OEM Grade Catalytic Converter (51355) by MagnaFlow®. Converter Configuration: Universal Fit. Position: Passenger Side. Catalytic Converter Body Shape: Round. Without Air Tube. With Midbed O2 Sensor Port. Catalytic Inlet Diameter: 2.25"....$202.00
- MagnaFlow®OEM Grade Universal Fit Round Body Catalytic Converter (51204)OEM Grade Catalytic Converter (51204) by MagnaFlow®. Converter Configuration: Universal Fit. Position: Passenger Side. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2"....$194.00
- MagnaFlow®OEM Grade Universal Fit Round Body Catalytic Converter (51234)OEM Grade Catalytic Converter (51234) by MagnaFlow®. Converter Configuration: Universal Fit. Position: Front Passenger Side. Catalytic Converter Body Shape: Round. Without Air Tube. With Post-Cat O2 Sensor Port. Catalytic Inlet...$197.00
- MagnaFlow®Direct Fit Catalytic Converter (5461119)Catalytic Converter (5461119) by MagnaFlow®. Converter Configuration: Direct Fit. If your car needs replacement, install one that will get you through the smog check. This converter will directly replace the factory unit, with little or...$1,897.00
Shop By Service Type
Everybody knows that our environment can be negatively affected by harmful exhaust gases from internal combustion engines. A catalytic converter is a device created to control your Audi A4’s emissions in the form of carbon monoxide and hydrocarbons. The chemical reaction takes place within the catalytic converter, or “cat” for short. This reaction is often referred to as “redox,” which stands for reduction-oxidation. When the exhaust heats the spongy precious-metal element inside the steel casing, it starts to catalyze harmful pollutants turning them into less harmful gases.
Since 1975, the use of catalytic converters in the U.S. became a legal requirement on all gasoline-powered autos. Catalytic converters provide a huge service for mother nature while reducing the greenhouse effect thus protecting the environment. Although, catalytic converters, just like all automotive parts, wear out and may get clogged, with such tell-tale signs as poor acceleration, lower fuel efficiency, and harder starts being among some of the most obvious ones. We carry a wide range of high-quality Audi A4 catalytic converters & components offered at an affordable price, so you can easily restore the emission control system of your car.
Featured Brands
Related Categories
Popular Products
- $22.54 - $72.70
- $45.15 - $248.21
- $12.06 - $993.05
- $15.14 - $166.62