SKU: 77947250241

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

Sale price$457.20 Regular price$508.00
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

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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 49918. 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 49918. 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 254 551 QX and 8E0 254 554 QX.

Note : Not For Sale in California

Interchange:

Brand  Interchange Part Number
Audi 8E0 254 551 QX
Audi 8E0 254 554 QX
Audi 8E0254551QX
Audi 8E0254554QX
Audi 8E0 254 551 QX
Audi 8E0 254 554 QX
Audi 8E0254551QX
Audi 8E0254554QX

Application:

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

Specs:

Body Material Stainless Steel
Overall Length (In.) 48.3
Title OEM Grade Direct-Fit
Substrate Material Ceramic
Air Tube Adaptable No
Converter Quantity 2
Inlet Attachment Bolt-On
Material Stainless Steel
Finish Stainless Steel
Type Direct-Fit
Main Piping Diameter (In.) 2.5
Subtitle Federal / EPA Compliant
Oxygen Sensor Location Pre and Post Converter
Series OEM Grade
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: 77947250241

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4.3 ★★★★★
Based on 10 reviews
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Product Reviews
S
Verified Purchase
Stacey Dawn Brody
West Palm Beach, US
★★★★★ 5
Great, tough, and will not break your dog’s teeth!
Style: Giggle Fumble
I am the aunt of several different types of dogs and they all love the giggle toys. The problem with most of them is that they are hard to Plastic (I guess so the dog doesn’t bite into the giggle box and disable it). Every pup I know is crazy about the giggle toys, but I’m always afraid they’ll break teeth. This one is very tough material but not hard so that your dog could bite down on it and enjoy the giggle.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
A
Verified Purchase
Ana M.
Draper, US
★★★★★ 5
Perfect for strong chewers!
Style: EcoFetch
Best balls for dogs who love to tear up toys. My pup tore up regular tennis balls but he can’t tear these up and he loves to just chew them. Will always buy these for our fur baby!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
B
Verified Purchase
Brittany Harman
Whiting, US
★★★★★ 5
Beagle’s Best Friend
Style: Super Crunch Stick, Style: Super Crunch Stick
This is my dog’s favorite toy! We’ve had it for about 6 months now. She plays with it and chews on it every single day. She takes it everywhere. Despite all her rough housing with it, it is still completely intact, so it is extremely durable! Love this thing! We call it her “crunchy carrot”
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
V
Verified Purchase
Vicki Petersen
Lowell, US
★★★★★ 4
Great
Style: EcoFetch
Works great and Finnley loves it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
S
Verified Purchase
SDkra
Birmingham, US
★★★★★ 5
Great toy!
Style: Super Crunch Stick
Dog loves it! Works great , dog carries around and has not destroyed it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026

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