SKU: 74401178962

2017 Audi Q7 Direct-Fit Catalytic Converter 21-813 Magnaflow

Sale price$374.40 Regular price$416.00
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 29 - Oct 4

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Description

2017 Audi Q7 Direct-Fit Catalytic Converter 21-813 MagnaflowOverview: Keep the check engine light off with MagnaFlow OEM Grade Federal EPA Compliant Direct Fit Catalytic Converter 21 813. 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 21-813. 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 2017 Audi Q7 and interchanges with OE part 4M0 254 252 AX. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation.

Note : Not For Sale in California

Interchange:
Brand  Interchange Part Number
Audi 4M0 254 252 AX
Audi 4M0254252AX
Audi 4M0 254 252 AX
Audi 4M0254252AX

Application:

Year Make Model Submodel Engine Size
2017 Audi Q7 3L/V6

Specs:

Air Tube Adaptable No
Outlet Attachment Bolt-On
Overall Length (In.) 13.875
Outlet Quantity 1
Mounting Hardware Included Yes
Inlet Quantity 1
Heat Shield Attached No
Type Direct-Fit
Title OEM Grade Direct-Fit
Subtitle Federal / EPA Compliant
Substrate Ceramic
Series OEM Grade
Oxygen Sensor Location Midbed
Outlet Diameter (In.) 2.25
Material Stainless Steel
Body Height (In.) 5
Main Piping Diameter (In.) 2.25
Inlet Diameter (In.) 2.5
Inlet Attachment Bolt-On
Hangers Included Yes
Gasket Included Yes
Finish Stainless Steel
Converter Quantity 1
Clamp Included No
Body Width (In.) 5
Body Type Spun
Body Shape Round
Body Length (In.) 7.5
Sensor Port Count 1
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: 74401178962

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4.3 ★★★★★
Based on 27 reviews
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jmharn
Lake Worth, US
★★★★★ 1
Not worth buying
Size: Small, Color: Light Blue
Cheap material, stitching looks cheap, and the collar is way too big, almost like it’s a wrong cut. It doesn’t look good at all. Decide it to throw away in the trash right away. It’s a $25 mistake.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
T
Verified Purchase
Tonya
Phoenix, US
★★★★★ 5
Just as described
Size: X-Large, Color: Black
Pullover is soft and comfortable. Too soon to comment on shrinkage but quality seems to be good. Not heavy duty but good quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
W
Verified Purchase
William M Murray
Waukegan, US
★★★★★ 4
FYI
Size: 3X-Large, Color: Khaki
Me and my wife liked the look of the sweatshirt. The color is what I expected. Shirt was comfortable. I got the 3X and it fit pretty good. However I was debating if the 2X would have been better, but I have big shoulders and it may have been tight. Length was pretty good, but my thoughts it could have been just a tad longer.
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Reviewed in the United States on November 7, 2025
A
Verified Purchase
ANTONIO SUAREZ MUÑOZ
Houston, US
★★★★★ 5
Lo fácil que es hacer las compras
Size: Medium, Color: Dark Blue
Excelente producto... muy buen buzo
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Reviewed in the United States on April 7, 2026
P
Verified Purchase
poolman
Whiting, US
★★★★★ 5
Perfect Fit the First Time
Size: XX-Large, Color: Navy Blue
This is a really, nice, comfy quarter zip that I wore with just a basic white T-shirt. It was a night out with my significant other and she even complimented how classy it looked. The fit is true to size. I would definitely recommend this product and feel that it is worth the price. It is not only comfortable, it can be worn different ways should you decide to wear a dress shirt underneath. I wear a size 2x and have a size 52 chest. It was not tight and it was not baggy. This definitely felt like a quality product.
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Reviewed in the United States on January 14, 2026

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