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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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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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
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 23724585831

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4.5 ★★★★★
Based on 2220 reviews
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Niall
Port Orchard, US
★★★★★ 5
Amazing shoes!
Size: 5 Wide Big Kid, Color: Black/Pink
Runs true to size .Fits wide feet and they look amazing. They're also splash proof.They also have amazing grip.Overall amazing shoes highly recommend.
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Reviewed in the United States on May 10, 2026
A
Verified Purchase
Addu
Lowell, US
★★★★★ 5
Great tennis shoes!!
Size: 4.5 Big Kid, Color: Black/Orange
The best shoes my son had this past year. He loves them and has worn them continuously, not only for running and training, but also for daily use. He really likes them and says they are very comfortable.
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Reviewed in the United States on February 4, 2026
M
Verified Purchase
Marissa C.
Fort Morgan, US
★★★★★ 5
Size up
Size: 2 Big Kid, Color: Black/Pink
My daughter loves them. However they run a size small so we had to size up. She is anywhere from a 13-1 and we had to get a 2 in these. Overall great show and quality. She also just learned how to tie her shoe (7yo) and they are easy for her to tie. Style is great for running and sports too. Overall great value for the money.
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Reviewed in the United States on May 21, 2025
M
Verified Purchase
MJE
Chelsea, US
★★★★★ 4
These shoes make a great first impression, but beware of the stingy toe box.
Size: 13.5 Wide Big Kid, Color: Black/Orange
These shoes make a good first impression. They look sharp and appear to be well-made for running shoes. They also get bonus points for having actual laces instead of the common velco/fake laces combo. However, my son struggled to get them on at first due to limited room in the toe box. He has wide feet as well as high arches and the shoes were very snug across the top of his foot initially. Once he got them on, we determined that they were both wide enough (which is a rarity in itself) and the right size – just tight across the top. I actually had to remove the insoles to get them on his feet at first. After a few minutes I tried again with the insoles and he wore them around the house for a few hours, at which point the upper material had relaxed and/or the footbed had started to take on the shape of his foot, in effect creating more wiggle room. By then he didn't want to take them off, so they must have gotten more comfortable after that brief break-in period. If they were still too tight I'm sure he would have complained. I'll update the review if the shoes wear out prematurely or there is anything else noteworthy to report.
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Reviewed in the United States on August 15, 2024
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Whiting, US
★★★★★ 5
Awesome shoes
Size: 6 Wide Big Kid, Color: Black/Orange
Awesome shoes, great tread, comfortable!
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Reviewed in the United States on February 25, 2026

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