SKU: 23724585831

Catalytic Converter for 2003-2004 Audi RS6 4.2L OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter MagnaFl

Sale price$395.10 Regular price$439.00
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Description

Catalytic Converter for 2003-2004 Audi RS6 4.2L OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter MagnaFlOverview: Keep the check engine light off with MagnaFlow OEM Grade Federal EPA Compliant Direct Fit Catalytic Converter 49742. 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

Overview:

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49742. 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 2003-2004 Audi RS6 and interchanges with OE part 4B3 253 057 EX.

Note : Not For Sale in California

Interchange:

Brand  Interchange Part Number
Audi 4B3 253 057 EX
Audi 4B3253057EX
Audi 4B3 253 057 EX
Audi 4B3253057EX

Application:

Year Make Model Submodel Engine Size
2003 - 2004 Audi RS6 4.2L/V8

Specs:

Body Material Stainless Steel
Overall Length (In.) 42.4
Series OEM Grade
Substrate Material Ceramic
Air Tube Adaptable No
Subtitle Federal / EPA Compliant
Converter Quantity 2
Title OEM Grade Direct-Fit
Inlet Attachment Bolt-On
Type Direct-Fit
Oxygen Sensor Location Pre and Post Converter
Finish Stainless Steel
Material Stainless Steel
Main Piping Diameter (In.) 2.5
Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 23724585831

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John Zmirak
Chelsea, US
★★★★★ 5
A fun, inspiring, thought-provoking read.
Format: Kindle
A witty, learned page-turner, replete with wacky anecdotes but suffused by wisdom and patriotic love. Metaxas shows how the biblical view of the human person made America possible, and weaves throughout the story pieces of evidence that Providence actively aided the pious patriots against their cynical, post-Christian enemies in Britain. I devoured this book in 72 hours, and now I want to go back and read it again.
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Reviewed in the United States on June 2, 2026
C
C. Himes
Massapequa, US
★★★★★ 5
THE book for America 250 - Beautifully Written
Format: Hardcover
Every American should read this book. Metaxas has written THE book for America 250. Whether you’re a history buff or someone who dozed through high school history class, this book will make you see the American Revolution with completely fresh eyes.
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Reviewed in the United States on June 2, 2026
K
Kate
Louisville, US
★★★★★ 5
The American Revolution in ONE Volume
Format: Hardcover
The single best telling of the epic story of the REVOLUTION that’s out there. Extremely readable and informative.
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Reviewed in the United States on June 2, 2026
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Sara Slimp
New York, US
★★★★★ 5
Is America the Greatest Nation in the History of the World? Yes. And let Metaxas remind you.
Format: Hardcover, Format: Hardcover
EXCELLENT! Just the book I wanted to prepare for the 250th. Less textbook, more like a long chat with a friend. A great refresher on the important events of the birth of our nation and deep appreciation for some the men and women who don’t always get attention. It is so incredible how many events had to come together for our nation to come together as the GREATEST Nation in the History of the World!
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Reviewed in the United States on June 2, 2026
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colleen
Chelsea, US
★★★★★ 5
great audio book
Format: Kindle
⭐️⭐️⭐️⭐️ I really enjoyed Strangers. It was the perfect length — long enough to get invested in the characters without dragging on. The story felt very relatable and honest about how much people and marriages can change over 20 years. I appreciated how openly it explored growing apart, unmet expectations, and the complicated emotions that come with long-term relationships. That said, while I could understand some of James’s feelings, I personally don’t think I could ever forgive him for walking away from his kids. That part stayed with me long after I finished the book. Overall, an emotional and thought-provoking read that felt very re
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Reviewed in the United States on May 20, 2026

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