2008 Audi RS4 Catalytic Converters

Keep Your 2008 Audi RS4 in Top Shape with Quality Catalytic Converters

Whether you’re repairing or upgrading your Catalytic Converter, using high-quality parts is key to keeping your 2008 Audi RS4 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Catalytic Converters. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Catalytic Converters from Trusted Brands

Looking for a reliable Catalytic Converter? We’ve got you covered with options from brands you know and trust like Magnaflow. For example, Magnaflow Catalytic Converters start at just $197.99 with an average 4.1 star rating. With over 2 reviews and a solid 5 star average, you can shop with confidence knowing other Audi RS4 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2008 Audi RS4 Catalytic Converter at Advance Auto Parts is around $585.99, with a range that starts at $197.99 and goes up to $782.99. With 3 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Direct-Fit OEM Grade Catalytic Converter and Direct-Fit OEM Grade Catalytic Converter start at just $776.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Catalytic Converter, don’t forget to check out other key components like Exhaust Fittings. At Advance Auto Parts, we’re here to help you keep your 2008 Audi RS4 in peak condition, inside and out.

Essential 2008 Audi RS4 Catalytic Converters

MagnaFlow – OEM Grade Universal Catalytic Converter – 2.50" (Part No.51236)

OEM Grade Universal Catalytic Converter - 2.50"

from

$197.99
MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51236 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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:
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Durable 308 stainless steel MIG welds
See More

MagnaFlow – Direct-Fit OEM Grade Catalytic Converter (Part No.49263)

Direct-Fit OEM Grade Catalytic Converter

from

$782.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49263. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun” Body 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 spun” Body 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 specifically for the 2007-2008 Audi RS4 and interchanges with OE part 8E0 254 507 X. 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:
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

MagnaFlow – Direct-Fit OEM Grade Catalytic Converter (Part No.49262)

Direct-Fit OEM Grade Catalytic Converter

from

$776.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49262. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun” Body 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 spun” Body 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 specifically for the 2007-2008 Audi RS4 and interchanges with OE part 8E0 254 556 X. 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:
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

Most Popular Catalytic Converters for 2008 Audi RS4s

Enhance your 2008 Audi RS4 with one of the 3 Catalytic Converters we have in stock, starting at just $197.99.

MagnaFlow – OEM Grade Universal Catalytic Converter – 2.50" (Part No.51236)

OEM Grade Universal Catalytic Converter - 2.50"

from

$197.99
MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51236 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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:
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Durable 308 stainless steel MIG welds
See More

MagnaFlow – Direct-Fit OEM Grade Catalytic Converter (Part No.49263)

Direct-Fit OEM Grade Catalytic Converter

from

$782.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49263. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun” Body 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 spun” Body 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 specifically for the 2007-2008 Audi RS4 and interchanges with OE part 8E0 254 507 X. 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:
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

MagnaFlow – Direct-Fit OEM Grade Catalytic Converter (Part No.49262)

Direct-Fit OEM Grade Catalytic Converter

from

$776.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49262. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun” Body 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 spun” Body 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 specifically for the 2007-2008 Audi RS4 and interchanges with OE part 8E0 254 556 X. 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:
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

Top-Rated Catalytic Converter Brands For Your 2008 Audi RS4

When it comes to finding the perfect Catalytic Converter for your 2008 Audi RS4, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 1 trusted brands. We carry the most popular Catalytic Converter brands including Magnaflow, and more, all known for their exceptional customer ratings (average brand rating of 4.1 stars) and competitive prices, as low as $197.99. Purchasing a Catalytic Converter from us here at Advance Auto Parts is a smart move for both you and your 2008 Audi RS4, providing peace of mind with parts that meet or exceed OEM standards.

Popular Magnaflow 2008 Audi RS4 Catalytic Converters

If you’re looking for a top-quality Catalytic Converter for your 2008 Audi RS4, Advance Auto Parts has exactly what you need with our selection of Magnaflow Catalytic Converters. We have 1 Magnaflow Catalytic Converters in stock for this fitment, all known for their durability and precision fit. With prices starting at just $197.99, you’ll find the perfect Catalytic Converter for your needs and budget. Magnaflow Catalytic Converters for the 2008 Audi RS4 come highly rated, with over 1 customer reviews and an impressive average rating of 4.1 stars. Choosing a Magnaflow Catalytic Converter from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
OEM Grade Universal Catalytic Converter - 2.50"
from $197.99
(1)
OEM Grade Universal Catalytic Converter – 2.50"
“Good Product.”

FAQs for 2008 Audi RS4 Catalytic Converters

What are the best-selling Catalytic Converters for 2008 Audi RS4s?

Out of 3 Catalytic Converters that fit 2008 Audi RS4s, the following parts are the top sellers:

What’s the price range for 2008 Audi RS4 Catalytic Converters?

The prices of Catalytic Converters for the 2008 Audi RS4 range from $197.99 up to $782.99 for the most premium parts.

What is the average price of a Catalytic Converter for a 2008 Audi RS4?

The average price for Catalytic Converters for the 2008 Audi RS4 is $585.99. Keep in mind the variety of part types within our Catalytic Converter category, where you are likely to find a wide range of prices across a variety of parts and components.

What are the cheapest Catalytic Converters for my 2008 Audi RS4?

The cheapest 2008 Audi RS4 Catalytic Converters we carry are:

Does Advance Auto Parts sell Catalytic Converters for any other 2008 Audi models?

Yes. We stock Catalytic Converters for 11 other popular 2008 Audi models. Some of the most popular are 2008 S4 Catalytic Converters, 2008 A4 Quattro Catalytic Converters, 2008 A4 Catalytic Converters, 2008 A6 Quattro Catalytic Converters, and 2008 A6 Catalytic Converters.

What are the top-rated Catalytic Converters that fit the 2008 Audi RS4?

The one 2008 Audi RS4 Catalytic Converter we have in stock is the OEM Grade Universal Catalytic Converter – 2.50". It is rated 5 stars and costs $197.99.

What types of Catalytic Converters do you sell for my 2008 Audi RS4?

We currently have just 1 Catalytic Converter in stock for a 2008 Audi RS4, and as of 11/2/25, it is a Catalytic Converter.

Can I get help with 2008 Audi RS4 Catalytic Converter orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Audi Catalytic Converters and more.

What is your return policy for Audi RS4 Catalytic Converters?

Advance Auto Parts keeps returns simple. For new Audi RS4 Catalytic Converters and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.