SKU: 78668832473

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

Sale price$319.05 Regular price$354.50
Save 10%

Pay in installments of $88.62 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Catalytic Converter for 2000-2003 Audi A8 Quattro 4.2L OEM Grade Federal / EPA Compliant Direct-Fit Catalytic ConverterOverview: Keep the check engine light off with MagnaFlow OEM Grade Federal EPA Compliant Direct Fit Catalytic Converter 51452. 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 51452. 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 2000-2003 Audi A8 Quattro and interchanges with OE parts 4D0 254 400 AX, 4D0 254 400 BX, among others.

Note : Not For Sale in California

Interchange:

Brand  Interchange Part Number
Audi 4D0 131 090 HX
Audi 4D0 131 090 QX
Audi 4D0 253 058 RX
Audi 4D0 254 400 AX
Audi 4D0 254 400 BX
Audi 4D0131090HX
Audi 4D0131090QX
Audi 4D0253058RX
Audi 4D0254400AX
Audi 4D0254400BX
Audi 4D0 131 090 HX
Audi 4D0 131 090 QX
Audi 4D0 253 058 RX
Audi 4D0 254 400 AX
Audi 4D0 254 400 BX
Audi 4D0131090HX
Audi 4D0131090QX
Audi 4D0253058RX
Audi 4D0254400AX
Audi 4D0254400BX

Application:

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

Specs:

Body Material Stainless Steel
Overall Length (In.) 29.2
Substrate Material Ceramic
Air Tube Adaptable No
Converter Quantity 1
Inlet Attachment Bolt-On
Material Stainless Steel
Outlet Attachment Clamp-On
Series OEM Grade
Finish Stainless Steel
Subtitle Federal / EPA Compliant
Title OEM Grade Direct-Fit
Type Direct-Fit
Oxygen Sensor Location Post Converter
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: 78668832473

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 15 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
Darla Tedders
Carnegie, US
★★★★★ 5
Beautiful!!
Color: E
Great necklace beautiful and classy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
G
Verified Purchase
Gerri in Cincy
Bozeman, US
★★★★★ 5
Great bargain for something this cute!
Color: G
Luv this combo - it is so cute!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
A
Ashley Clark
Charlottesville, US
★★★★★ 5
So Pretty
Color: B
A beautiful necklace for my beautiful daughter. She is 12 years old and starting to appreciate pretty jewelry rather than fun/colorful/kid’s jewelry; BUT - she’s 12!!! No real gold or fancy jewelry just yet! Gifts like this perfectly hit the mark right now. It looks beautiful, feels fun and trendy but more mature, has held up well to the wear and tear of a 12 year old, and is the perfect size for her at this time. She loves anything with her initial on it so she, of course, adores this necklace. She wears it several times a week. She has occasionally worn this necklace to bed on accident and it has not broken or gotten damaged in any way. All in all, I recommend this cute necklace as a beautiful gift!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026
J
JCnomad
Alexandria, US
★★★★★ 5
Classy and Pretty Necklace Set
Color: C, Color: C
This is a very pretty necklace set. The chains are thin, delicate, and lightweight in a yellow gold color. I feel they are the same as what is pictured. I especially like the lettering of the small font, which makes it look classier than others I’ve seen of the same style. So far, they seem to be pretty durable to wear as they don’t feel like they’ll immediately break if they were to get snagged on a top. I have a smaller neck as I’m small myself (about 100lbs), and the chains fit me perfectly on the tightest clasps. They are adjustable. Some metals, such as nickel, cause me to have a slight skin reaction, but this did not. It included a small pink jewelry wipe, much like that of one for eyeglasses, which I’ve never seen before. It also had a sweet little blank note card in a tiny printed envelope inside the jewelry box to make it extra special should it be given as a gift. These were thoughtful details that gave it that little extra something for me. There were only two things I wish were a little different. The first is that they are two separate necklaces, and I’d like if they were connected as one, so you’d only have to clasp them on once. The second is that rather than the little wipe, I’d of personally preferred a little dust bag to store them, as many jewelry pieces include. However, I don’t think either of these takes away from their overall style or quality, so it did not make me deduct a star. Overall, I feel this is a lovely set to purchase for yourself, or to give as a gift to someone special. I definitely feel the value for your money is there for these necklaces.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
T
TheHonestReviewer
San Leandro, US
★★★★★ 4
Beautiful, Dainty Layered Set!
Color: S, Color: S
I am so impressed with this little necklace set! I was looking for something simple and elegant for daily wear, and this initial necklace set exceeded my expectations for the price. What I Loved: 1. The Packaging: It comes in a very cute, gift-ready box with a "Handmade with Love" message and a floral insert. It even includes a "Thank You" sticker, which is a really sweet touch if you're planning to give this as a gift. 2. The Design: You get two separate necklaces. One is a classic, sparkly water-wave chain, and the other is a dainty satellite chain (the one with the little beads) featuring a small, polished initial "S." 3. Versatility: Since they are two separate pieces, you can wear them together for that trendy layered look or just wear one at a time for something more subtle. 4. Quality: The gold tone is bright and has a high-end shine to it. The clasps feel secure, and they both have adjustable extenders so you can get the layering lengths just right. What I am concerned about: Polish: I liked the finish and quality but I am skeptical about the tarnishing on the necklace. This might loose with time. I guess the time will tell. The Verdict: If you’re looking for a thoughtful, personalized gift or just a cute new addition to your jewelry box that won't break the bank, this is it. It looks much more expensive than it actually is!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026

recommand products