Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

Audi A4 OE Catalytic Converters

Sort By
Filter By
Return to Top

Dual Clamp Exhaust Sleeve - Priced Each

ES#2702394 - 1K0253141M - Dual Clamp Exhaust Sleeve - Priced Each - Quiet down your leaking exhaust. 55mm - Rein - Audi Volkswagen

Quiet down your leaking exhaust. 55mm 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2702394
Mfg#:
1K0253141M
In Stock
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Locking Nut - Priced Each

ES#471981 - N91130801 - Locking Nut - Priced Each - Locking nut with flange. M8x1.25mm - Genuine Volkswagen Audi - Audi Volkswagen

Locking nut with flange. M8x1.25mm Locking nut that secures catalytic converter to downpipe

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
471981
Mfg#:
N91130801
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Catalytic Converter - Right Side

ES#2538179 - 8K0254250KXKT - Remanufactured Catalytic Converter - Right Side - Price includes a $910.00 refundable core charge - Genuine Volkswagen Audi - Audi

Price includes a $910.00 refundable core charge From the 2010 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2538179
Mfg#:
8K0254250KXKT
Ships in 5 Business Days
$3911.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Catalytic Converter

ES#2739743 - 8K0254253HXKT - Remanufactured Catalytic Converter - Includes a $210 refundable core charge - Genuine Volkswagen Audi - Audi

Includes a $210 refundable core charge Up to the 2012 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2739743
Mfg#:
8K0254253HXKT
Ships in 1 day
$3787.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Catalytic Converter

ES#2535499 - 8E0254200QXKT - Remanufactured Catalytic Converter - Price includes a $252 refundable core charge - Genuine Volkswagen Audi - Audi

Price includes a $252 refundable core charge

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2535499
Mfg#:
8E0254200QXKT
Ships in 7 Business Days
$3641.70 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Catalytic Converter - Left Side

ES#2538178 - 8K0254200KXKT - Remanufactured Catalytic Converter - Left Side - Price includes $300 refundable core charge - Genuine Volkswagen Audi - Audi

Price includes $300 refundable core charge From the 2010 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2538178
Mfg#:
8K0254200KXKT
In Stock
$3590.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Self-Locking Nut - Priced Each

ES#2588753 - N90369001 - Self-Locking Nut - Priced Each - Install new hardware with your new parts. M10x1.5 - Rein - Audi BMW Volkswagen

Install new hardware with your new parts. M10x1.5 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Used to secure the catalyst/downpipe to the turbo

Brand:
Rein - Corporate Logo
ES#:
2588753
Mfg#:
N90369001
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Direct-Fit Catalytic Converter

ES#3412016 - 52352 - Direct-Fit Catalytic Converter - Keep your emissions in check - Magnaflow - Audi

Keep your emissions in check New York & Federal Compliant

Brand:
Magnaflow - Corporate Logo
ES#:
3412016
Mfg#:
52352
Ships in 1 Business Day
$1320.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Catalytic Converter

ES#10210 - 8E0131089DXkt - Remanufactured Catalytic Converter - Price includes a $910.00 refundable core charge - Genuine Volkswagen Audi - Audi Volkswagen

Price includes a $910.00 refundable core charge

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
10210
Mfg#:
8E0131089DXKT
Ships in 5 Business Days
$2421.99

This product was last offered at the strikethrough price on
07-14-2026

$2407.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Catalytic Converter - Right

ES#2532233 - 8e0254550pxkt - Remanufactured Catalytic Converter - Right - Price includes a $910 refundable core charge - Genuine Volkswagen Audi - Audi

Price includes a $910 refundable core charge 5 speed manual transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2532233
Mfg#:
8E0254550PXKT
Ships in 1 day
$2287.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Dual Clamp Exhaust Sleeve - Priced Each

ES#3023 - 357253141A - Dual Clamp Exhaust Sleeve - Priced Each - Quiet down your leaking exhaust. 55mm - HJS - Audi Volkswagen

Quiet down your leaking exhaust. 55mm

Brand:
HJS - Corporate Logo
ES#:
3023
Mfg#:
357253141A
In Stock
$13.25 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Stud - Priced Each

ES#467178 - N0445203 - Exhaust Stud - Priced Each - Install new hardware with your new parts. M10X28 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M10X28 Allows the catalytic converter to be secured to the turbocharger

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
467178
Mfg#:
N0445203
In Stock
$2.81 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Catalytic Converter Install Kit

ES#2576283 - 8K0253115AKT2 - Catalytic Converter Install Kit - Contains all of the hardware you need to install new catalytic converters on your Audi - Assembled By ECS - Audi

Contains all of the hardware you need to install new catalytic converters on your Audi 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2576283
Mfg#:
8K0253115AKT2
In Stock
ON SALE! SAVE 12%
$98.99

This product was last offered at the strikethrough price on
05-02-2026

$86.85 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Gasket - Priced Each

ES#4716227 - 8K0253115D - Exhaust Gasket - Priced Each - Seals the catalytic converter to the downpipe - Elring - Audi

Seals the catalytic converter to the downpipe 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
4716227
Mfg#:
8K0253115D
In Stock
$11.99

This product was last offered at the strikethrough price on
04-20-2026

$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Catalytic Converter Installation Kit

ES#3028723 - 8D0253115KT3 - Catalytic Converter Installation Kit - Includes the necessary hardware and gaskets to install the catalytic converter - Assembled By ECS - Audi Volkswagen

Includes the necessary hardware and gaskets to install the catalytic converter 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3028723
Mfg#:
8D0253115KT3
In Stock
ON SALE! SAVE 21%
$59.99

This product was last offered at the strikethrough price on
05-02-2026

$47.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Catalytic Converter Installation Kit

ES#2575495 - 8K0253115KT2 - Catalytic Converter Installation Kit - Contains all of the hardware you need to install a new catalytic converter - Assembled By ECS - Audi

Contains all of the hardware you need to install a new catalytic converter 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2575495
Mfg#:
8K0253115KT2
In Stock
ON SALE! SAVE 20%
$72.99

This product was last offered at the strikethrough price on
05-02-2026

$58.36 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Let us help you find the parts that fit your Audi

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings