SKU: 36300472722

2015-2016 Audi A3 Quattro Direct-Fit Catalytic Converter 21-580 Magnaflow

Sale price$539.55 Regular price$599.50
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

2015-2016 Audi A3 Quattro Direct-Fit Catalytic Converter 21-580 MagnaflowOverview: Keep the check engine light off with MagnaFlow OEM Grade Federal EPA Compliant Direct Fit Catalytic Converter 21 580. 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 21-580. 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 2015-2016 Audi A3 Quattro and interchanges with OE part 5Q0 254 501 DX. 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 5Q0 254 501 DX
Audi 5Q0254501DX
Audi 5Q0 254 501 DX
Audi 5Q0254501DX

Application:

Year Make Model Submodel Engine Size
2015 - 2016 Audi A3 Quattro 2L/L4

Specs:

Air Tube Adaptable No
Material Stainless Steel
Overall Length (In.) 64.25
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 Post Converter
Outlet Diameter (In.) 2.5
Outlet Attachment Clamp-On
Main Piping Diameter (In.) 2.5
Body Height Position Front (In.) 5
Inlet Diameter (In.) 3
Inlet Attachment Clamp-On
Hangers Included Yes
Gasket Included No
Finish Stainless Steel
Converter Quantity 2
Clamp Included Yes
Body Width Position Rear (In.) 4
Body Width Position Front (In.) 5
Body Type Spun
Body Shape Round
Body Length Position Rear (In.) 9
Body Length Position Front (In.) 8.125
Body Height Position Rear (In.) 4
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: 36300472722

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September Hall
Whiting, US
★★★★★ 5
Great no show socks
Size: Small, Color: (725) Oxford Brown / Oxford Brown / Black
Very comfortable and perfect fit for my small feet. I love the full coverage sock feel with a totally no show sock.
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Reviewed in the United States on May 29, 2026
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ABK
Los Angeles, US
★★★★★ 5
Great no shows for people with larger feet
Size: Large, Color: (001) Black / Black / Castlerock
Some of my favorite socks!! Great quality, fit, and material. I love that they don't slip down in my shoes, especially considering I have larger feet. I also love that Under Armour offers larger sizes in their socks considering everyone in our household has much larger feet than others.
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Reviewed in the United States on May 3, 2026
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Tatacrio
Grantham, US
★★★★★ 5
Best liner socks EVER
Size: Medium, Color: (348) Silica Green / Silica Green / Hydro Green
I have them in every color and used to get them from Sams, but they stopped selling them and I was lucky to find them on Amazon. Got all colors again. They stay, it's all I'm gonna say! And don't show in any of my tennis shoes. Absolutely love them and wear them until they get holes. They last a LONG time too. They're on the thin side and my foot loves them because they tend to get hot. There's no shrinking, they wash great with exception of the white ones I couldn't manage to keep white - they turned a bit greyish.
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Reviewed in the United States on January 4, 2026
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Christy F
Massapequa, US
★★★★★ 5
Great socks
Size: Medium, Color: Pink - 647
Well-made and comfortable to wear. Great for golf and other outdoor activities. Like them because they do not show above shoes.
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Reviewed in the United States on April 19, 2026
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Cait E
Grantham, US
★★★★★ 5
These ACTUALLY stay put all day long - I was skeptical, but am so glad I took a chance on these
Size: Medium, Color: (014) Halo Gray / Halo Gray / Castlerock
I was so skeptical about whether these would stay on my feet all day without sliding down into my shoe - I’ve tried so many socks in the past with the silicone strip on the heel which failed. I’ve owned these for a couple months now and they have never slipped down - they stay put all day! I love the variety of colors to choose from, and the value per pack is great since six pairs come per pack (I thought it was only three when I first purchased and was pleasantly surprised by the additional pairs). They also have perfect thickness - not too warm to wear during the summer months with sneakers; I live in a tropical climate, though, so I’m not sure how they will do in cooler climates. I’ve washed each pair once or twice and the color and quality of the silicone has stayed so far (knock on wood). Overall: high recommend based on my experience so far!
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Reviewed in the United States on September 13, 2025

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