SKU: 85691533434

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

Sale price$567.00 Regular price$630.00
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  • CAN

Ships within 48 hours · Estimated delivery Sep 20 - Sep 25

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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 49872. 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 49872. 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 254 554 PX and 8E0 254 551 PX. 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 254 551 PX
Audi 8E0 254 554 PX
Audi 8E0254551PX
Audi 8E0254554PX
Audi 8E0 254 551 PX
Audi 8E0 254 554 PX
Audi 8E0254551PX
Audi 8E0254554PX

Application:

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

Specs:

Subtitle Federal / EPA Compliant
Series OEM Grade
Inlet Attachment Bolt-On
Body Material Stainless Steel
Material Stainless Steel
Overall Length (In.) 45.5
Type Direct-Fit
Substrate Material Ceramic
Air Tube Adaptable No
Converter Quantity 2
Main Piping Diameter (In.) 2.5
Oxygen Sensor Location Pre and Post Converter
Finish Stainless Steel
Outlet Attachment Clamp-On
Title OEM Grade Direct-Fit
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: 85691533434

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4.8 ★★★★★
Based on 23 reviews
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Product Reviews
M
Verified Purchase
Mary
Waukegan, US
★★★★★ 5
The Perfect Phone Mount.
Color: Dark Black, Size: 1 Pack
It’s the perfect size, easy to install, and works perfectly. I have a 15 pro max iPhone, and it fits perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
D
Verified Purchase
Darth Fader
Lowell, US
★★★★★ 5
Well built and removes cleanly.
Color: Dark Black, Size: 1 Pack
Seems to be very solid and it was a little bit tricky to get it located on the vent blade properly, though that might just be due to the vents shape in my Highlander. I really like that it can be easily moved from one vehicle to another if needed without leaving adhesive residue like my last mount did. The only concern I have is whether the vent blade will support the weight long term. Time will tell I guess. EDIT: This fits all of the vents on my 2011 Highlander great. On my 2022 Highlander it will only attach to the center vents and then just barely hooks on after angling the vent blades enough for the hooks to grab. Even then the mount only makes contact at the very top and bottom of the vent opening. It works, but I wouldn't recommend it as ideal.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
F
Verified Purchase
Fred
Grantham, US
★★★★★ 5
Works great
Color: Dark Black, Size: 1 Pack
Great product which is easy to use and affordable price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
B
Verified Purchase
Brad Sorrow
Port Orchard, US
★★★★★ 5
Best phone holder I have ever purchased!
Color: Dark Black, Size: 1 Pack
Hands down the best phone holder I have ever purchased. The ones that stick to the windshield always end up coming loose. This attached to your vent and is super sturdy. Very easy to install and uninstall without making a mess on your window.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
B
Verified Purchase
Beloved
Natrona Heights, US
★★★★★ 5
Well worth it. Great product.
Size: 1 Kit, Size: 1 Kit
For the inexpensive price it’s worth its weight in gold. I admittedly probably didn’t work on it as long or as hard as I should have, but I still had great results. *** One warning: when it says to “tape up and cover your paint around it” do it! I figured I would just be careful but no I was wrong. It will REALLY damage your paint, so make sure you don’t get any on it. YES- This is the sanding discs too! They have chemicals on them, they are not regular discs. If you do get on paint, clean immediately! My only regret with this project and my fault, not theirs. My headlights went from dingy yellow, to much brighter and definitely more clear. Love the results. Very happy with the purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026

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