SKU: 11384267138

Catalytic Converter for 2004-2009 Audi S4 4.2L OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter MagnaFlo

Sale price$568.35 Regular price$631.50
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Description

Catalytic Converter for 2004-2009 Audi S4 4.2L OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter MagnaFloOverview: Keep the check engine light off with MagnaFlow OEM Grade Federal EPA Compliant Direct Fit Catalytic Converter 49871. 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 49871. 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 2004-2009 Audi S4 and interchanges with OE parts 8E0 254 505 RX and 8E0 254 502 TX. Hardware is included to eliminate the hassle of working with corroded factory parts.

Note : Not For Sale in California

Interchange:

Brand  Interchange Part Number
Audi 8E0 254 502 TX
Audi 8E0 254 505 RX
Audi 8E0254502TX
Audi 8E0254505RX
Audi 8E0 254 502 TX
Audi 8E0 254 505 RX
Audi 8E0254502TX
Audi 8E0254505RX

Application:

Year Make Model Submodel Engine Size
2004 - 2009 Audi S4 4.2L/V8

Specs:

Body Material Stainless Steel
Overall Length (In.) 45.625
Substrate Material Ceramic
Air Tube Adaptable No
Converter Quantity 2
Main Piping Diameter (In.) 2.5
Oxygen Sensor Location Pre and Post Converter
Title OEM Grade Direct-Fit
Type Direct-Fit
Finish Stainless Steel
Subtitle Federal / EPA Compliant
Series OEM Grade
Material Stainless Steel
Outlet Attachment Clamp-On
Inlet Attachment Bolt-On
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: 11384267138

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4.2 ★★★★★
Based on 570 reviews
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Product Reviews
A
Verified Purchase
Austin Morris
Phoenix, US
★★★★★ 5
Great
Color: 2926 Gold Stainless Steel/Gold Dial
Exactly as shown, perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
B
Verified Purchase
Blake
Belleville, US
★★★★★ 4
Good budget watch
Color: 2926 Silver Stainless Steel/Black Dial
Good watch for a budget, color is good. The pins holding the link together tend to wear out and fall out. Other than that it worked good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 14, 2026
J
Verified Purchase
JWells
Boise, US
★★★★★ 5
Nice Watch
Color: 5885 Siver Stainless Steel/hon Dial, Color: 5885 Siver Stainless Steel/hon Dial
Nice watch for the money. I've only had it a week but seems to be keeping good time. From 20 feet away might be mistaken for "Trump Time". The watch design is actually a copy of the Rolex Submariner for a whole lot less money. Several watch companies have copied the Submariner. I removed one link at a time when resizing the band. By the time I got to the final link, the supplied tool wasn't working. I had to remove the final link with a hacksaw and pliers.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
D
Verified Purchase
Danny
Birmingham, US
★★★★★ 1
DIDN'T LAST LONG
Color: 5885 Gold Stainless Steel/Gold Dial
Bought this in June 2025, and only wore it a few times. Recently noticed the time was "off" and the seconds-hand wasn't moving. I thought it sat too long and needed to be wound up. So, I wound...and wound...and wound. Never met any resistance in the crown during clock-wise winding...just continued to spin freely, and the seconds-hand never moved. It's a pretty-looking time piece, but don't waste your money if you expect it to keep time. 👎
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
G
Verified Purchase
Geraden Christensen
Carnegie, US
★★★★★ 3
Great watch, terrible resizing tool.
Color: 2926 Silver Stainless Steel/Black Dial
Watch is great, feel heavy, looks beautiful in person. It shines pretty heavily. My main issue is with the resizing tool it comes with. It broke when I tried to use it. Be prepared to buy your own like I did. I can’t say how the fit is yet because I can’t wear it yet. It is not easy to set up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026

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