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

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4.9 ★★★★★
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Product Reviews
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N. Hale
Pawtucket, US
★★★★★ 3
Runs big, and fabric may not be same color as picture
Color: Medium Grey, Size: 16, Color: Medium Grey, Size: 16
This suit was a good find for us, as we usually dress up for church, and my 13 yo son often wears suits. He normally wears a size 16, so that’s what we ordered, and in dark charcoal gray. The suit we got was a light, heathered gray that didn’t look much like the one in the picture. It was very wrinkly and thin, and a little scratchy. Also, the sleeves were way too long and the torso cut of the jacket was pretty wide. The pants were very large in the waist, but fit him decently in the length (he’s 5’4” and weighs 90 lbs). Overall the suit looked like it was drowning him, so I would order a size down unless you have a larger child/teen. Because of the ill fit, I haven’t had the chance to see what the suit looks like on him as it’s supposed to, but I guess I’ll return it or wait a year or two until he fills it out a bit more. Not overly impressed with the quality, so I’m not sure I’d pay $55 for this one again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2025
D
Verified Purchase
DrEAM
New York, US
★★★★★ 5
Super soft, runs small, long tail
High quality, super soft, good neck height, nice price, ready to go right out of the dryer, medium thick material, works well under a sport coat or sweat shirt, snug fit--runs about one size small. Length is about four inches too long. So, ideally made for tall and skinny people (I am short and thick), but going one size up works fine for me except have to tuck it in due to the length.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 26, 2025
G
Verified Purchase
Gabriel King
Carnegie, US
★★★★★ 5
This shirt is a cheat code
Color: Black, White, Navy Blue, Light Gray, Size: XX-Large
These shirt fits my body so perfectly! I’m 6’5” 310 pounds but I look 260 pounds. I sweat easily and I’m very sensitive to the material a piece of clothing is made of. This shirt is lightweight, extremely breathable, and feels like silk on the skin. It compliments and accentuates my contours to enhance my physique. I only tried on one and I’ve already ordered 12 more hehe. This is a cheat code.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 24, 2025
B
Verified Purchase
bigness
Boise, US
★★★★★ 4
I Love the collar
Color: Black, White, Navy Blue, Wine Red, Size: Large
Great T-shirt. I can wear this casually with jeans or with a sports coat. The fabric is soft. There is no label in the collar, so you can wear it however you want.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
E
Verified Purchase
Emel Djeipah
Pawtucket, US
★★★★★ 3
NOT a compression shirt
Color: Black, White, Navy Blue, Wine Red, Size: Large
These are well made with good quality material but are not what I was expecting given the picture. I am an XL and ordered a L because I wanted them to be tight (which they are not.) I decided not to return them because they are good shirts with a reasonable fit, but be advised these are not compression shirts.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026

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