Audi A8 Quattro Catalytic Converters

Your One-Stop Shop For Trusted Audi A8 Quattro Catalytic Converters

If you’re in search of Audi A8 Quattro Catalytic Converters aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 17 Catalytic Converters from top brands with prices ranging from $194.99 to $1,143.00.

Beyond great prices, we stock trusted brands manufacturing all types of Catalytic Converters for your Audi A8 Quattro.

And don’t forget to read customer reviews across all Catalytic Converters categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Catalytic Converters have to cost top dollar, and we prove it. Browse our top Audi A8 Quattro Catalytic Converters below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

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Essential Audi A8 Quattro Catalytic Converters

MagnaFlow – Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter (Part No.49136)

Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter

from

$1143.00
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49136. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. MagnaFlow 49136 includes (1) Nut, (3) Bolts, (1) O2 Port Plug, (1) Flange Gasket and interchanges with OE parts 8K0 254 250 KX, 8K0 254 250 PX, 8K0 254 253 AX, 8K0 254 253 K. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Durable 308 stainless steel MIG welds
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
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MagnaFlow – Oem Grade Federal / Epa Compliant Universal Catalytic Converter (Part No.51206)

Oem Grade Federal / Epa Compliant Universal Catalytic Converter

from

$211.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51206. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion welds greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.

Product Features:
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MagnaFlow – Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter (Part No.52315)

Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter

from

$1017.00
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52315. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. MagnaFlow 52315 includes (1) Nut, (3) Bolts and interchanges with OE parts 4G0 254 250 QX, 4G0 254 252 LX. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Durable 308 stainless steel MIG welds
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
See More

MagnaFlow – California Grade Carb Compliant Universal Catalytic Converter (Part No.444206)

California Grade Carb Compliant Universal Catalytic Converter

from

$412.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 444206. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
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MagnaFlow – California Grade Carb Compliant Direct-Fit Manifold Catalytic Converter (Part No.452791)

California Grade Carb Compliant Direct-Fit Manifold Catalytic Converter

from

$1066.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Manifold Catalytic Converter 452791. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Manifold Catalytic Converter is designed to fit the 2005-2006 Audi A8 Quattro 6.0L. MagnaFlow 452791 includes (2) Nuts, (2) Bolts, (2) Flange Gaskets and interchanges with OE parts 07C 253 019 KX. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
  • Durable 308 stainless steel MIG welds
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
See More

MagnaFlow – Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter (Part No.52316)

Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter

from

$1001.00
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52316. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. MagnaFlow 52316 includes (1) Nut, (3) Bolts and interchanges with OE parts 4G0 254 202 NX. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Durable 308 stainless steel MIG welds
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
See More

MagnaFlow – California Grade Carb Compliant Universal Catalytic Converter (Part No.418004)

California Grade Carb Compliant Universal Catalytic Converter

from

$477.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 418004. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
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Walker – CalCat CARB Universal Catalytic Converter 2" Inlet (ID) 2" Outlet (ID) (Part No.81660)

CalCat CARB Universal Catalytic Converter 2" Inlet (ID) 2" Outlet (ID)

from

$509.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat universal catalytic converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles. Walker CalCat catalytic converters are thoroughly tested to ensure they meet CARB performance requirements.

Product Features:
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MagnaFlow – California Grade Carb Compliant Universal Catalytic Converter (Part No.441206)

California Grade Carb Compliant Universal Catalytic Converter

from

$637.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 441206. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
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MagnaFlow – Oem Grade Federal / Epa Compliant Universal Catalytic Converter (Part No.51355)

Oem Grade Federal / Epa Compliant Universal Catalytic Converter

from

$221.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51355. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion welds greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.

Product Features:
See More

MagnaFlow – Oem Grade Federal / Epa Compliant Direct-Fit Manifold Catalytic Converter (Part No.51161)

Oem Grade Federal / Epa Compliant Direct-Fit Manifold Catalytic Converter

from

$872.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 51161. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Manifold Catalytic Converter is designed to fit the 2005-2009 Audi A8 Quattro 6.0L. MagnaFlow 51161 includes (2) Nuts, (2) Bolts, (2) Flange Gaskets and interchanges with OE parts 07C 253 020 KX. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Durable 308 stainless steel MIG welds
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
See More

MagnaFlow – California Grade Carb Compliant Universal Catalytic Converter (Part No.408004)

California Grade Carb Compliant Universal Catalytic Converter

from

$325.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 408004. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
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MagnaFlow – Hm Grade Federal / Epa Compliant Universal Catalytic Converter (Part No.99206HM)

Hm Grade Federal / Epa Compliant Universal Catalytic Converter

from

$194.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99206HM. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.

Product Features:
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MagnaFlow – California Grade Carb Compliant Universal Catalytic Converter (Part No.448306)

California Grade Carb Compliant Universal Catalytic Converter

from

$782.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 448306. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
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MagnaFlow – Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter (Part No.49135)

Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter

from

$932.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49135. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. MagnaFlow 49135 includes (1) Nut, (3) Bolts, (1) O2 Port Plug, (1) Flange Gasket and interchanges with OE parts 8K0 254 200 DX, 8K0 254 200 FX, 8K0 254 200 KX, 8K0 254 200 PX, 8K0 254 200 SX, 8K0 254 202 CX. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Durable 308 stainless steel MIG welds
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
See More

MagnaFlow – Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter (Part No.51452)

Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter

from

$709.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51452. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Catalytic Converter is designed to fit the 2000-2003 Audi A8 Quattro 4.2L. MagnaFlow 51452 interchanges with OE parts 4D0 131 090 HX, 4D0 131 090 QX, 4D0 253 058 RX, 4D0 254 400 AX, 4D0 254 400 BX. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
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MagnaFlow – Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter (Part No.51890)

Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter

from

$757.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51890. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Catalytic Converter is designed to fit the 2000-2003 Audi A8 Quattro 4.2L. MagnaFlow 51890 interchanges with OE parts 4D0 253 012 RX, 4D0 254 350 X, 4D0 254 550 AX, 4D0 254 550 BX. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
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Catalytic Converters Brands You Can Trust For Your Audi A8 Quattro

2 trusted brands of Catalytic Converters line our shelves, ready to help keep your Audi A8 Quattro running smooth. Below are some of the most popular brands and their top Catalytic Converters offerings:

Most Purchased Audi A8 Quattro Catalytic Converters from MagnaFlow

When you buy the most frequently purchased MagnaFlow brand Catalytic Converters, you can be confident it will be the right part for your Audi A8 Quattro. Here are the MagnaFlow Catalytic Converters Advanced Auto customers buy the most:
Oem Grade Federal / Epa Compliant Universal Catalytic Converter
from $221.99
This product is not rated
Oem Grade Federal / Epa Compliant Universal Catalytic Converter
Catalytic Converters
Oem Grade Federal / Epa Compliant Universal Catalytic Converter
from $211.99
This product is not rated
Oem Grade Federal / Epa Compliant Universal Catalytic Converter
Catalytic Converters
Hm Grade Federal / Epa Compliant Universal Catalytic Converter
from $194.99
This product is not rated
Hm Grade Federal / Epa Compliant Universal Catalytic Converter
Catalytic Converters

FAQs for Audi A8 Quattro Catalytic Converters

What are the most purchased Catalytic Converters for the Audi A8 Quattro?

Out of 17 Catalytic Converters for the Audi A8 Quattro, the most popular in our inventory are:
Oem Grade Federal / Epa Compliant Universal Catalytic Converter
from $221.99
This product is not rated
Oem Grade Federal / Epa Compliant Universal Catalytic Converter
Catalytic Converters
Oem Grade Federal / Epa Compliant Universal Catalytic Converter
from $211.99
This product is not rated
Oem Grade Federal / Epa Compliant Universal Catalytic Converter
Catalytic Converters
Hm Grade Federal / Epa Compliant Universal Catalytic Converter
from $194.99
This product is not rated
Hm Grade Federal / Epa Compliant Universal Catalytic Converter
Catalytic Converters