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Audi B6 A4 Quattro V6 30v

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Audi B6 A4 Quattro V6 30v Exhaust Emission Parts

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Universal Catalytic Converter - 2.25"

ES#4005308 - 602205 - Universal Catalytic Converter - 2.25" - 2.25" inlet/outlet, 14" length of converter itself, 6" width & 4" height - Emico - Audi BMW Volkswagen Mercedes Benz MINI Porsche

2.25" inlet/outlet, 14" length of converter itself, 6" width & 4" height

Brand:
Emico - Corporate Logo
ES#:
4005308
Mfg#:
602205
In Stock
$97.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor Tool - Angled Handle - 7/8" - Bavarian Autosport

ES#3673911 - B8800066 - Oxygen Sensor Tool - Angled Handle - 7/8" - Bavarian Autosport - Slotted, pivoting head has both hexagon and double hexagon drive. Angled handle reaches around obstructions. - Bav Auto Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

Slotted, pivoting head has both hexagon and double hexagon drive. Angled handle reaches around obstructions. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bav Auto Tools - Corporate Logo
ES#:
3673911
Mfg#:
B8800066
Ships on Sep 1, 2026
Auto Notify
ON SALE! SAVE 25%
$49.99

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

$37.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal 4-Wire Oxygen Sensor - Priced Each

ES#2532224 - 15733 - Universal 4-Wire Oxygen Sensor - Priced Each - Four wire universal OBD-II Oxygen sensor - Bosch - Audi BMW Volkswagen

Four wire universal OBD-II Oxygen sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2532224
Mfg#:
15733
In Stock
$82.99

This product was last offered at the strikethrough price on
02-16-2026

$74.99 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 3 Business Days
$2287.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor Tool - 22mm

ES#3673912 - B8800067 - Oxygen Sensor Tool - 22mm - 1/2" Drive - 7/8" x 6" - Extra Long - Bav Auto Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

1/2" Drive - 7/8" x 6" - Extra Long 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bav Auto Tools - Corporate Logo
ES#:
3673912
Mfg#:
B8800067
Ships on Sep 1, 2026
Auto Notify
ON SALE! SAVE 20%
$29.99

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

$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#11898 - 16978 - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Bosch - Audi

Keep your engine running efficiently 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For models with AVK engine code only - Fits left and right sides

Brand:
Bosch - Corporate Logo
ES#:
11898
Mfg#:
16978
In Stock at Vendor
$128.99

This product was last offered at the strikethrough price on
05-19-2026

$110.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Direct-Fit Catalytic Converter

ES#2616072 - 22960 - Direct-Fit Catalytic Converter - Keep your emissions in check - Magnaflow - Audi Volkswagen

Keep your emissions in check

Brand:
Magnaflow - Corporate Logo
ES#:
2616072
Mfg#:
22960
Back Ordered
$897.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Off Set O2 Sensor Wrench

ES#4371880 - W80491 - Off Set O2 Sensor Wrench - Offset design for confined areas. - Performance Tool - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Offset design for confined areas.

Brand:
Performance Tool - Corporate Logo
ES#:
4371880
Mfg#:
W80491
Ships in 1 Business Day
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Direct-Fit Catalytic Converter

ES#2618131 - 24190 - Direct-Fit Catalytic Converter - Keep your emissions in check - Magnaflow - Audi

Keep your emissions in check *Not legal for sale, installation or use on vehicles registered in the state of California or Colorado*

Brand:
Magnaflow - Corporate Logo
ES#:
2618131
Mfg#:
24190
Back Ordered
$703.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor Socket

ES#4370861 - W1267 - Oxygen Sensor Socket - Removes oxygen sensors located in the exhaust. - Performance Tool - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Removes oxygen sensors located in the exhaust.

Brand:
Performance Tool - Corporate Logo
ES#:
4370861
Mfg#:
W1267
Ships in 1 Business Day
$12.80 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Innovate LC-2 Wideband O2 Controller Kit

ES#4809696 - 38770 - Innovate LC-2 Wideband O2 Controller Kit - Includes Lambda cable & 8-foot sensor cable. - Innovate Motorsports - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Includes Lambda cable & 8-foot sensor cable.

Brand:
Innovate Motorsports - Corporate Logo
ES#:
4809696
Mfg#:
38770
In Stock at Vendor
$212.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - Priced Each

ES#319086 - 1K0998262F - Front Oxygen Sensor - Priced Each - Keep your engine running efficiently - Genuine Volkswagen Audi - Audi Volkswagen

Keep your engine running efficiently Fits left and right position

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
319086
Mfg#:
1K0998262F
Ships in 2 Business Days
8% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$413.99

This product was last offered at the strikethrough price on
07-17-2026

$378.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thin Wall Oxygen Sensor Socket

ES#4001177 - CTA2064 - Thin Wall Oxygen Sensor Socket - Out of space? Use this thin wall socket. - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Out of space? Use this thin wall socket.

Brand:
CTA Tools - Corporate Logo
ES#:
4001177
Mfg#:
CTA2064
In Stock
$17.85 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#1853396 - 1K0998262 - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Genuine Volkswagen Audi - Audi Volkswagen

Keep your engine running efficiently For models with AVK engine code only - Fits left and right sides

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1853396
Mfg#:
1K0998262
Ships in 1-2 days
7% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$374.99

This product was last offered at the strikethrough price on
07-17-2026

$349.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor 4 Pin - Black

ES#1853403 - 1K0998262R - Oxygen Sensor 4 Pin - Black - Located after the catalytic converter - Genuine Volkswagen Audi - Audi Volkswagen

Located after the catalytic converter For models with BGN engine code only - Fits left and right sides

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1853403
Mfg#:
1K0998262R
Ships in 8 Business Days
7% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$374.99

This product was last offered at the strikethrough price on
07-17-2026

$349.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Exhaust Emission Parts

Oxygen sensors, catalytic converters, and other critical emissions components not only cause Check Engine Lights when they fail, but they'll also keep you from registering your car. Make sure your emissions system is functioning properly so you can continue to drive your car legally.

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Manufacturer names and/or part numbers are used only for identification purposes.

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