SKU: 91300552806

Catalytic Converter for 2000-2003 Audi A8 Quattro 4.2L OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

$340.65 $378.50
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

Catalytic Converter for 2000-2003 Audi A8 Quattro 4.2L OEM Grade Federal / EPA Compliant Direct-Fit Catalytic ConverterOverview: MagnaFlow OEM Grade Federal EPA Compliant Direct Fit Catalytic Converter 51890 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state of the art 3D scanning systems in the

Overview:

MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51890 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. This direct-fit catalytic converter is designed specifically for the 2000-2003 Audi A8 Quattro and interchanges with OE parts 4D0 253 012 RX, 4D0 254 350 X, among others.

Note : Not For Sale in California

Interchange:

Brand  Interchange Part Number
Audi 4D0 253 012 RX
Audi 4D0 254 550 AX
Audi 4D0 254 550 BX
Audi 4D0 254 350 X
Audi 4D0253012RX
Audi 4D0254550AX
Audi 4D0254550BX
Audi 4D0254350X
Audi 4D0 253 012 RX
Audi 4D0 254 550 AX
Audi 4D0 254 550 BX
Audi 4D0 254 350 X
Audi 4D0253012RX
Audi 4D0254550AX
Audi 4D0254550BX
Audi 4D0254350X

Application:

Year Make Model Submodel Engine Size
2000 - 2003 Audi A8 Quattro 4.2L/V8

Specs:

Body Material Stainless Steel
Overall Length (In.) 56
Substrate Material Ceramic
Air Tube Adaptable No
Converter Quantity 1
Inlet Attachment Bolt-On
Main Piping Diameter (In.) 2.5
Outlet Attachment Clamp-On
Oxygen Sensor Location Pre and Post Converter
Series OEM Grade
Finish Stainless Steel
Material Stainless Steel
Subtitle Federal / EPA Compliant
Title OEM Grade Direct-Fit
Type 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: 91300552806

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4.4 ★★★★★
Based on 28 reviews
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Product Reviews
M
MJ
Birmingham, US
★★★★★ 5
Cushiony and lightweight sneakers!
Size: 5.5 Toddler, Color: Gold/Rainbow, Size: 5.5 Toddler, Color: Gold/Rainbow
The shoes are excellent quality! I was worried that the soles would be heavy since they are a little thicker than other toddler shoes, but this is not the case. The shoes are lightweight and run true to size. They were a little hard to put on the first two times and I thought, "Oh no, they must be too narrow." However, after my toddler wore these for a few hours each time, they stretched out and I checked her feet and did not notice any signs of discomfort, such as impressions on her feet from the shoes and/or redness. Toddler walked "normal" and even ran in these. The style is supercute (gotta love the subtle sparkles) and athletic and they appear to give her a lot of support. I can't speak to durability as she has only worn them for a few weeks but so far, they held up well and I have no issues with the velcro. I am glad they softened and stretched out after a short time of wear and they have plenty of cushion! Overall, these are great and no complaints here. I highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 25, 2025
E
EOTS
Phoenix, US
★★★★★ 5
Great looks for any outfit choice
Size: 12 Toddler, Color: Black/Grey
I was proud to see my first grader run their first mile on these shoes. The look and color is great for either a boy or a girl, and matches with either neutral colored or bright outfits. My kiddo found it easy to put on and adjust snuggly, so it’s nice having a shoe that doesn’t require an adult to calibrate and tighten just right (like my kids soccer cleats!). This is several steps past your cheap sneaker and I can tell it will comfortably get many more miles from my kid.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 15, 2025
D
Dennis S
Belleville, US
★★★★★ 5
A good choice
Size: 4 Toddler, Color: Black/Grey
This is a great pair of shoes with excellent durability and color. It’s a classy little shoe that looks good and had a good fit. That was true to it sizing. It’s an excellent value for the money and they held up well throughout testing. No flaws were found in any of the materials and workmanship was phenomenal. If I could give it more than five stars I would.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 29, 2025
A
Verified Purchase
Amy
Natrona Heights, US
★★★★★ 5
Nice shoes
Size: 13 Wide Big Kid, Color: Purple/Turq
Absolutely love the colors on these shoes. My daughter loves them and says they are comfortable! Would buy them again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
S
Verified Purchase
Stephanie J.
Belleville, US
★★★★★ 5
Comfortable!
Size: 12.5 Big Kid, Color: Purple/Turq
My daughter loves these. She’s5. We got the size 12.5 and they fit her well.. a little space between her toes and the tip of the shoe but just the right amount. She says they are comfortable and good for her PE class and playing outside. We got the blue and then I ordered the black cause she loved them so much. They were on a great sale too!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2025

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