Catalytic Converter for 2002-2004 Audi A6 3.0L MagnaFlow 51438
SKU: 39640935429

Catalytic Converter for 2002-2004 Audi A6 3.0L MagnaFlow 51438

Sale price$315.45 Regular price$350.50
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Catalytic Converter for 2002-2004 Audi A6 3.0L MagnaFlow 51438Overview: Keep the check engine light off with MagnaFlow OEM Grade Federal EPA Compliant Direct Fit Catalytic Converter 51438. 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 51438. 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. Designed to fit the 2002-2004 Audi A6 Quattro and 2002-2004 Audi A6, this direct-fit catalytic converter also interchanges with OE part 4B0 253 012 QX.

Note : Not For Sale in California

Interchange:

Brand  Interchange Part Number
Audi 4B0 253 012 QX
Audi 4B0253012QX
Audi 4B0 253 012 QX
Audi 4B0253012QX

Application:

Year Make Model Submodel Engine Size
2002 - 2004 Audi A6 3L/V6
2002 - 2004 Audi A6 Quattro Base 3L/V6
2002 - 2004 Audi A6 Quattro Avant 3L/V6

Specs:

Body Material Stainless Steel
Overall Length (In.) 53.2
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
Main Piping Diameter (In.) 2.5
Oxygen Sensor Location Pre Converter and Midbed
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: 39640935429

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4.4 ★★★★★
Based on 2249 reviews
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B
Verified Purchase
Ben
Houston, US
★★★★★ 5
fits my Sienna 2006 with a little adjustment - sturdy, clean and happy that I brought it
Size: 8.3" x 8.4" x 0.6"
I brought this for my Camry 2006 and I have a Sienna 2004 as well that use the same regular cabin filter with the exact model. But when I put this K&N filter on my Sienna it doesn't fit well. The K&N filter sits in the plastic cabin filter frame exactly but there are four little plastic square on the side of the plastic frame sticking out that were in the way. I trim off the K&N border a bit and also the frame too in order to fit in. Beside a little adjustment, it works perfectly for my Sienna 2004. The smell is gone. I also use an oil pen to note on the K&N filter that "Do not replace" in case the dealer replace it during a maintain. I would buy more but this is life time I will buy another one for my camry. I am more than glad introducing this to my friends
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Reviewed in the United States on April 2, 2015
G
Verified Purchase
GÉNESIS
Cuba, US
★★★★★ 5
Te ahorra dinero y tiempo
Size: 8.3" x 8.4" x 0.6"
Un filtro de muy buena calidad, lo recomiendo ya que se puede lavar y uno se ahorra mucho dinero
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Reviewed in the United States on December 24, 2025
P
Verified Purchase
psylencezero
Fort Morgan, US
★★★★★ 5
Make sure it fits your vehicle cabin filter.
Size: 8.3" x 8.4" x 0.6"
I like that it last long and I don't need to buy replacement every time a funky smell starts appearing after turning on the car or truck AC or heater. Saves money by easy to maintain without replacements.
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Reviewed in the United States on October 12, 2023
W
Verified Purchase
Walter
Lake Worth, US
★★★★★ 4
buen material
Size: 8.3" x 8.4" x 0.6"
Es una buena compra excelente producto calza perfectamente en mi Fj cruiser 2011, en cuanto a su durabilidad lo diré cuando pueda hacerlo por lo pronto está instalado cuando haga los primeros lavados volveré a comentar si se mantienen en buen estado como promete. Lo que difiere con el original es que un lado va para abajo el que tienen una felpa tipo algodón y el otro para arriba en cambio en este filtro de cabina K&N no se sabe cual lado ba abajo o cual arriba, por eso menos una estrella
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
E
Verified Purchase
elbows and bebowes
Charlottesville, US
★★★★★ 5
It works as advertised
Size: 8.3" x 8.4" x 0.6"
The one thing I haven't found out is if the product will remove exhaust smells - I don't believe it will, but the nice thing is that air flows a little bit better then the Toyota FJ carbon filter that was in there. I don't believe the previous owner even knew it had a cabin filter. Glad to have this in there.
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Reviewed in the United States on August 24, 2023

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