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BMW E90 335xi N54 3.0L

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BMW E90 335xi N54 3.0L Exhaust Emission Parts

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Direct-Fit Catalytic Converter - Cyl 1-3

ES#4491415 - 557768 - Direct-Fit Catalytic Converter - Cyl 1-3 - Keep your emissions in check. Primary cat in exhaust manifold. Rated for legal use and resale in California. - Magnaflow - BMW

Keep your emissions in check. Primary cat in exhaust manifold. Rated for legal use and resale in California. For California Emissions

Brand:
Magnaflow - Corporate Logo
ES#:
4491415
Mfg#:
557768
Ships in 2 Business Days
$1120.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Bank 1 post-Cat

ES#27274 - 11787545074 - Rear Oxygen Sensor - Bank 1 post-Cat - Fuel control and emissions control sensor - Genuine BMW - BMW

Fuel control and emissions control sensor

Brand:
Genuine BMW - Corporate Logo
ES#:
27274
Mfg#:
11787545074
Ships in 1-2 days
13% off MSRP

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

$325.99

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

$281.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Downpipe Exhaust Gasket - Priced Each

ES#40634 - 18307553603 - Downpipe Exhaust Gasket - Priced Each - Located between downpipe and mid-pipes, 2 required - Genuine BMW - BMW

Located between downpipe and mid-pipes, 2 required

Brand:
Genuine BMW - Corporate Logo
ES#:
40634
Mfg#:
18307553603
In Stock
ON SALE! SAVE 25%
$32.99

This product was last offered at the strikethrough price on
03-31-2026

$24.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Bank 2 Post-Cat

ES#3625133 - 11787545075 - Rear Oxygen Sensor - Bank 2 Post-Cat - Fuel control and emissions control sensor - FAE - BMW

Fuel control and emissions control sensor

Brand:
FAE - Corporate Logo
ES#:
3625133
Mfg#:
11787545075
In Stock
$78.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Bank 2 Post-Cat

ES#27275 - 11787545075 - Rear Oxygen Sensor - Bank 2 Post-Cat - Fuel control and emissions control sensor - Genuine BMW - BMW

Fuel control and emissions control sensor

Brand:
Genuine BMW - Corporate Logo
ES#:
27275
Mfg#:
11787545075
Ships in 1-2 days
13% off MSRP

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

$325.99

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

$281.99 USD
Free Shipping
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 - Bank 1 Pre-Cat

ES#3625139 - 11787558055 - Front Oxygen Sensor - Bank 1 Pre-Cat - Fuel control and emissions control sensor - FAE - BMW

Fuel control and emissions control sensor

Brand:
FAE - Corporate Logo
ES#:
3625139
Mfg#:
11787558055
Ships on Sep 10, 2026
$117.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - bank 1 Pre-Cat

ES#27293 - 11787558055 - Front Oxygen Sensor - bank 1 Pre-Cat - Fuel control and emissions control sensor - Genuine BMW - BMW

Fuel control and emissions control sensor

Brand:
Genuine BMW - Corporate Logo
ES#:
27293
Mfg#:
11787558055
Ships in 1-2 days
13% off MSRP

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

$406.99

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

$352.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - Bank 2 Pre-Cat

ES#27296 - 11787558087 - Front Oxygen Sensor - Bank 2 Pre-Cat - Fuel control and emissions sensor - Genuine BMW - BMW

Fuel control and emissions sensor

Brand:
Genuine BMW - Corporate Logo
ES#:
27296
Mfg#:
11787558087
Ships in 1-2 days
13% off MSRP

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

$406.99

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

$352.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Pipe Bracket - Front

ES#241873 - 18207553606 - Pipe Bracket - Front - Genuine BMW - BMW

Brand:
Genuine BMW - Corporate Logo
ES#:
241873
Mfg#:
18207553606
Ships on Sep 4, 2026
6% off MSRP

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

$78.99

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

$73.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Torx Bolt - Priced Each

ES#39984 - 18207544250 - Torx Bolt - Priced Each - For the bracket holding the midpipes. See MOQKT - Genuine BMW - BMW

For the bracket holding the midpipes. See MOQKT

Brand:
Genuine BMW - Corporate Logo
ES#:
39984
Mfg#:
18207544250
Ships in 1-2 days
$10.99

This product was last offered at the strikethrough price on
03-04-2026

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

60mm Exhaust Clamp - Priced Each

ES#254524 - 18307560779 - 60mm Exhaust Clamp - Priced Each - Used to connect exhaust sections - Genuine BMW - BMW MINI

Used to connect exhaust sections

Brand:
Genuine BMW - Corporate Logo
ES#:
254524
Mfg#:
18307560779
Ships in 1-2 days
9% off MSRP

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

$68.99

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

$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Bank 1 Post-Cat

ES#4343214 - 11787526262 - Rear Oxygen Sensor - Bank 1 Post-Cat - Fuel control and emissions control sensor - Febi - BMW

Fuel control and emissions control sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4343214
Mfg#:
11787526262
Back Ordered
$124.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Bank 2 Post-Cat

ES#4460474 - 3148030031 - Rear Oxygen Sensor - Bank 2 Post-Cat - Fuel control and emissions control sensor - Meyle - BMW
ECS Tuning recommends this product.

Fuel control and emissions control sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4460474
Mfg#:
3148030031
Ships on Sep 8, 2026
$112.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - Bank 2 Pre-Cat

Emissions and fuel control sensor 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
5482451
Mfg#:
11787558087
Ships on Nov 6, 2026
Auto Notify
$109.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Universal Oxygen Sensor Bung - Priced Each

ES#5051 - ATP-FLS-022 - Universal Oxygen Sensor Bung - Priced Each - Stainless steel weld-in nut for any O2 sensor - ATP - Audi BMW Volkswagen

Stainless steel weld-in nut for any O2 sensor

Brand:
ATP - Corporate Logo
ES#:
5051
Mfg#:
ATP-FLS-022
Ships in 7 Business Days
$12.95 USD
Free Shipping
on orders $49 and up
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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