Catalytic Converter for 2004-2006 Audi A8 Quattro 4.2L OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
SKU: 53740600293

Catalytic Converter for 2004-2006 Audi A8 Quattro 4.2L OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

Sale price$316.35 Regular price$351.50
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Catalytic Converter for 2004-2006 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 51966. 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 51966. 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 2004-2006 Audi A8 Quattro and interchanges with OE parts 4E0 254 551 X and 4E0 254 550 TX. 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 4E0 254 550 TX
Audi 4E0 254 551 X
Audi 4E0254550TX
Audi 4E0254551X
Audi 4E0 254 550 TX
Audi 4E0 254 551 X
Audi 4E0254550TX
Audi 4E0254551X

Application:

Year Make Model Submodel Engine Size
2004 - 2006 Audi A8 Quattro 4.2L/V8

Specs:

Series OEM Grade
Subtitle Federal / EPA Compliant
Material Stainless Steel
Title OEM Grade Direct-Fit
Type Direct-Fit
Outlet Attachment Clamp-On
Inlet Attachment Bolt-On
Clamp Included Yes
Mounting Hardware Included Yes
Body Material Stainless Steel
Overall Length (In.) 83
Substrate Material Ceramic
Air Tube Adaptable No
Converter Quantity 1
Main Piping Diameter (In.) 2.5
Oxygen Sensor Location Pre and Post Converter
Finish Stainless Steel
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: 53740600293

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 2126 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Amazon Customer
Whiting, US
★★★★★ 5
Two words: Double. Zipper.
Size: Small, Color: Purple
Great backpack for transitioning out of diaper bag but not yet ready to fling caution to the wind and leave the house with nothing. The real win on this is the double zipper. Zipping one way only is the worrrrst, and you don’t have to with this. So if you end up getting another one, that’s fine, but do yourself a favor and confirm the double zipper.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 1, 2026
M
Verified Purchase
Madhu
Houston, US
★★★★★ 5
Nice daycare bag
Size: Small, Color: Purple
Easy for my 2 year old to carry to her day care . She keeps all her stuffs (12 oz bottle , lunch and snack box, an extra pair of clothes ) in it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 5
Perfect for any toddler
Size: Small, Color: Pink Dino
It is the perfect size for any toddler. It is easy to clean. There is a small pouch in the inside to help with organization. My daughter is able to zip it up with out any trouble. Great quality for the cost.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 20, 2025
M
Verified Purchase
MissT
Louisville, US
★★★★★ 5
Comfortable
Size: X-Large, Color: Organic Cotton 5 Black Pack
Waist band and band around thighs are 4/5 because theyre almost nonexistent. That's the kind of underwear/shorts I feel most comfortable in. The shorts are pretty breathable and the only thing I disliked was how short it was, but thats on me. True to size. It wasnt a loose fit but it wasnt super tight.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 26, 2025
C
CGR
Fort Morgan, US
★★★★★ 5
perfect
I chose a size Large, which I normally wear in women's underwear. I am 5'4" and 158 lbs. The fit was perfect. They stayed put and didn't ride up. The material is soft. Machine wash and dry well. No complaints to speak of.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 20, 2024

recommand products