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BMW E90 335i N54 3.0L

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BMW E90 335i N54 3.0L Engine Emission Parts

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Oxygen Sensor - Downstream Catalytic Converter

ES#3031909 - 11787589475 - Oxygen Sensor - Downstream Catalytic Converter - 690mm. Rear O2 sensor/Lambda probe - Bosch - BMW
ECS Tuning recommends this product.

690mm. Rear O2 sensor/Lambda probe We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
3031909
Mfg#:
11787589475
In Stock
$223.99

This product was last offered at the strikethrough price on
04-30-2026

$172.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Blow-By Vent Hose

ES#4818515 - 11157553949 - Blow-By Vent Hose - For PCV system - Bremmen Parts - BMW

For PCV system 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818515
Mfg#:
11157553949
In Stock
ON SALE! SAVE 20%
$43.99

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

$35.08 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - Bank 2 Pre-Cat

ES#4615600 - 11787558087 - Front Oxygen Sensor - Bank 2 Pre-Cat - Emissions and fuel control sensor - URO - BMW

Emissions and fuel control sensor 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4615600
Mfg#:
11787558087
In Stock
$96.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

-10AN ORB X 3/4" Hose Barb Fitting Assembly - Priced Each

ES#3187875 - 003779ECS10 - -10AN ORB X 3/4" Hose Barb Fitting Assembly - Priced Each - Universal fitting for ECS Tuning Catch can to use a 3/4" Hose - ECS - Audi BMW Volkswagen MINI

Universal fitting for ECS Tuning Catch can to use a 3/4" Hose 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3187875
Mfg#:
003779ECS10
In Stock
ON SALE! SAVE 25%
$39.99

This product was last offered at the strikethrough price on
06-13-2026

$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N54 Oil Catch Can

ES#3025579 - BCC-N54-135-335 - N54 Oil Catch Can - Perfect for high boost applications. - Burger Motorsports - BMW

Perfect for high boost applications.

Brand:
Burger Motorsports - Corporate Logo
ES#:
3025579
Mfg#:
BCC-N54-135-335
In Stock
$179.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Bank 1 Post-Cat

ES#2580858 - 11787545074 - Rear Oxygen Sensor - Bank 1 Post-Cat - Fuel control and emissions control sensor - Bosch - BMW

Fuel control and emissions control sensor We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2580858
Mfg#:
11787545074
Ships in 1 Business Day
$228.99

This product was last offered at the strikethrough price on
08-31-2026

$158.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Blow-By Vent Hose

ES#4069279 - 11157553949 - Blow-By Vent Hose - For PCV system - Rein - BMW

For PCV system 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4069279
Mfg#:
11157553949
In Stock
ON SALE!
$40.99

This product was last offered at the strikethrough price on
08-31-2026

$38.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gas Cap

ES#2702773 - 16117222391 - Gas Cap - Complete with sealing gasket and tether. - Rein - BMW MINI

Complete with sealing gasket and tether. 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2702773
Mfg#:
16117222391
In Stock
ON SALE!
$29.99

This product was last offered at the strikethrough price on
08-31-2026

$28.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N54 Aluminum Oil Catch Can

ES#3984929 - 205420 - N54 Aluminum Oil Catch Can - Keep your N54 clean and be more efficient - VRSF - BMW

Keep your N54 clean and be more efficient We Price Match - Give Us A Call or Chat!

Brand:
VRSF - Corporate Logo
ES#:
3984929
Mfg#:
205420
Ships in 1 Business Day
$179.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Bank 1 Post-Cat

ES#3625132 - 11787545074 - Rear Oxygen Sensor - Bank 1 Post-Cat - Fuel control and emissions control sensor - FAE - BMW

Fuel control and emissions control sensor

Brand:
FAE - Corporate Logo
ES#:
3625132
Mfg#:
11787545074
In Stock
$90.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Catch can kit

ES#3543503 - 20-0373 - Catch can kit - Includes mounting bracket, hoses and fitting for a complete install - Radium Engineering - BMW

Includes mounting bracket, hoses and fitting for a complete install

Brand:
Radium Engineering - Corporate Logo
ES#:
3543503
Mfg#:
20-0373
In Stock
$259.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PCV Cover & Valve Upgrade

ES#5445538 - VTT-N54-UPCVVK - PCV Cover & Valve Upgrade - Ensures a superior seal that can withstand the high-pressure environments of tuned and high-horsepower N54 engines. - Vargas Turbo Technologies - BMW

Ensures a superior seal that can withstand the high-pressure environments of tuned and high-horsepower N54 engines. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
5445538
Mfg#:
VTT-N54-UPCVVK
Ships in 1-2 days
ON SALE! SAVE 15%
$64.99

This product was last offered at the strikethrough price on
09-03-2026

$55.24 USD
Free Shipping

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 We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2532224
Mfg#:
15733
In Stock
$74.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N54 PCV Valve Upgraded

ES#4428272 - 090745ECS09 - N54 PCV Valve Upgraded - Improve your N54's PCV system reliability! - ECS - BMW

Improve your N54's PCV system reliability! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4428272
Mfg#:
090745ECS09
Back Ordered
Auto Notify
ON SALE! SAVE 25%
$105.99

This product was last offered at the strikethrough price on
06-13-2026

$79.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Blow-By Vent Hose

ES#19642 - 11157553949 - Blow-By Vent Hose - For PCV system - Genuine BMW - BMW

For PCV system

Brand:
Genuine BMW - Corporate Logo
ES#:
19642
Mfg#:
11157553949
In Stock
4% off MSRP

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

$89.95

This product was last offered at the strikethrough price on
04-10-2026

$85.92 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gas Cap

ES#5396193 - 16117222391 - Gas Cap - Complete with sealing gasket and tether. - Bremmen Parts - BMW MINI
ECS Tuning recommends this product.

Complete with sealing gasket and tether. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
5396193
Mfg#:
16117222391
In Stock
ON SALE! SAVE 15%
$19.99

This product was last offered at the strikethrough price on
08-19-2026

$16.99 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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