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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T Engine Emission Parts

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Universal Large Aluminum Oil Catch Can

ES#2765062 - MM0CCLA - Universal Large Aluminum Oil Catch Can - Includes Mounting Brackets & Hardware - Mishimoto - Audi BMW Volkswagen MINI

Includes Mounting Brackets & Hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
2765062
Mfg#:
MM0CCLA
In Stock
$127.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Catch Can Kit - Carbon Fiber

ES#2500608 - MM0CCCF - Universal Catch Can Kit - Carbon Fiber - Kit with catch can and rubber hose; for retrofitting on a variety of vehicles. - Mishimoto - Audi BMW Volkswagen MINI

Kit with catch can and rubber hose; for retrofitting on a variety of vehicles. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
2500608
Mfg#:
MM0CCCF
In Stock
$162.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Fuel Cap Cover - Black Anodized

ES#3677064 - 022506ECS0102 - Billet Fuel Cap Cover - Black Anodized - Upgrade your gas cap to our gorgeous CNC-machined aluminum cover. Easily installs over your existing cap! - ECS - Audi Volkswagen Porsche

Upgrade your gas cap to our gorgeous CNC-machined aluminum cover. Easily installs over your existing cap! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3677064
Mfg#:
022506ECS0102
In Stock
ON SALE!
$117.99

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

$112.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PCV Gasket

ES#3186721 - 06M103517B - PCV Gasket - Located between the oil separator and the valve cover - Genuine Volkswagen Audi - Audi

Located between the oil separator and the valve cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3186721
Mfg#:
06M103517B
In Stock
25% off MSRP

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

$44.00

This product was last offered at the strikethrough price on
02-23-2026

$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Baffled Oil Catch Can - 6oz

ES#4369811 - 003779ECS05-01 - ECS Tuning Baffled Oil Catch Can - 6oz - Capture harmful oil vapors and keep your intake tract clean. Now featuring an easy to empty drain plug! - ECS - Audi BMW Volkswagen MINI

Capture harmful oil vapors and keep your intake tract clean. Now featuring an easy to empty drain plug! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For use with custom plumbing and ECS universal mounting bracket kit

Brand:
ECS - Corporate Logo
ES#:
4369811
Mfg#:
003779ECS05-01
In Stock
ON SALE! SAVE 46%
$233.99

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

$126.78 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Fuel Cap Cover - Clear Anodized

ES#3677062 - 022506ECS0101 - Billet Fuel Cap Cover - Clear Anodized - Upgrade your gas cap to our gorgeous CNC-machined aluminum cover. Easily installs over your existing cap! - ECS - Audi Volkswagen Porsche

Upgrade your gas cap to our gorgeous CNC-machined aluminum cover. Easily installs over your existing cap! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3677062
Mfg#:
022506ECS0101
In Stock
ON SALE!
$134.99

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

$130.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator/Pressure Control Valve (PCV)

ES#5372821 - 06M103515T - Oil Separator/Pressure Control Valve (PCV) - Also known as the "PCV". Located on the valve cover - Genuine Volkswagen Audi - Audi

Also known as the "PCV". Located on the valve cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5372821
Mfg#:
06M103515T
In Stock
6% off MSRP

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

$128.33

This product was last offered at the strikethrough price on
06-05-2026

$119.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Solenoid Valve - Priced Each

ES#274849 - 037906283C - Solenoid Valve - Priced Each - Common cure for DTC P0441 - Genuine Volkswagen Audi - Audi Volkswagen

Common cure for DTC P0441 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicle with productions dates up to 07/30/2020

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
274849
Mfg#:
037906283C
In Stock
16% off MSRP

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

$216.65

This product was last offered at the strikethrough price on
02-26-2026

$181.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mishimoto Oil Catch Can Kit

ES#4141537 - MMBCCS418PBE - Mishimoto Oil Catch Can Kit - Give the 3.0T TFSI powering your 2018+ Audi S4 or S5 the extra layer of defense that it needs - Mishimoto - Audi

Give the 3.0T TFSI powering your 2018+ Audi S4 or S5 the extra layer of defense that it needs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
4141537
Mfg#:
MMBCCS418PBE
In Stock at Vendor
$445.99 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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

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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bav Auto Tools - Corporate Logo
ES#:
3673911
Mfg#:
B8800066
In Stock
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

Vacuum System Repair Kit

ES#2515457 - 51731257971KT - Vacuum System Repair Kit - Kit includes vacuum T fittings, vacuum line, and one way check valve - Assembled By ECS - Audi Volkswagen

Kit includes vacuum T fittings, vacuum line, and one way check valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2515457
Mfg#:
51731257971KT
In Stock
ON SALE! SAVE 16%
$53.99

This product was last offered at the strikethrough price on
03-03-2026

$45.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RS5 Gas Cap

ES#3457816 - 8W0201550B - RS5 Gas Cap - Fuel filler cap with Audi 'RS' logo - Includes retaining strap - Genuine Volkswagen Audi - Audi

Fuel filler cap with Audi 'RS' logo - Includes retaining strap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3457816
Mfg#:
8W0201550B
Ships in 1 day
8% off MSRP

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

$85.00

This product was last offered at the strikethrough price on
02-26-2026

$77.99 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bav Auto Tools - Corporate Logo
ES#:
3673912
Mfg#:
B8800067
Ships on Aug 10, 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

Vacuum System Repair Kit

ES#279586 - 06A198011B - Vacuum System Repair Kit - Restore engine performance with this new kit - Genuine Volkswagen Audi - Audi Volkswagen

Restore engine performance with this new kit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279586
Mfg#:
06A198011B
Ships in 1 day
17% off MSRP

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

$178.32

This product was last offered at the strikethrough price on
06-04-2026

$148.36 USD
Free Shipping

Oxygen Sensor - Rear

ES#3631347 - 8W0906265AK - Oxygen Sensor - Rear - Keep your engine running efficiently - Genuine Volkswagen Audi - Audi

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3631347
Mfg#:
8W0906265AK
Ships in 1 day
8% off MSRP

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

$270.00

This product was last offered at the strikethrough price on
02-26-2026

$247.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Emission Parts

Repairing failed emission components doesn't just turn off the check engine light so you can pass your local emissions test, it also improves performance and fuel economy. ECS stocks all common emission controls, from oxygen sensors to PCV valves.

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

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