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BMW E90 325xi N52 3.0L

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BMW E90 325xi N52 3.0L Exhaust Emission Parts

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Oxygen Sensors - Bank 1 And 2 Pre-Cat

If your BMW is throwing a CEL for fuel trim adaptations, oxygen sensors degrade from extreme exhaust heat and carbon buildup, sending lazy or incorrect data to your DME. 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#:
5481586
Mfg#:
11787558055/73KT
In Stock at Vendor
$338.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Catalytic Converter - Cylinders 4-6

Front catalytic converter for cylinders 4-6. Includes $50 refundable core charge. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2684990
Mfg#:
18307547840KT
Ships in 5 Business Days
$4143.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Catalytic Converter - Cylinders 1-3

Front catalytic converter for cylinders 1-3. Includes $50 refundable core charge. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2684989
Mfg#:
18307544510KT
Ships in 5 Business Days
$1786.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Rear Exhaust Manifold With Catalytic Converter

ES#2695369 - 18407545309KT - Remanufactured Rear Exhaust Manifold With Catalytic Converter - For cylinders 4-6. Includes $50 core charge - Genuine BMW - BMW

For cylinders 4-6. Includes $50 core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2695369
Mfg#:
18407545309KT
Ships in 8 Business Days
$1705.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Bank 2 Pre-Cat

Located in the front position of the exhaust manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
5480641
Mfg#:
11787558073
Ships on Oct 19, 2026
Auto Notify
$105.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - Bank 1 Pre-Cat

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

Brand:
Bremmen Parts - Corporate Logo
ES#:
5480567
Mfg#:
11787558055
Ships on Oct 19, 2026
Auto Notify
$99.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Bank 1 Post-Cat

ES#4487460 - 11787545074 - Rear Oxygen Sensor - Bank 1 Post-Cat - Fuel control and emissions control sensor - Meyle - BMW
ECS Tuning recommends this product.

Fuel control and emissions control sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4487460
Mfg#:
11787545074
Special Order: No Guaranteed ETA
$117.99

This product was last offered at the strikethrough price on
12-29-2025

$116.99 USD
Free Shipping
on orders $49 and up

Direct-Fit Catalytic Converter - Cyl 4-6

ES#4491411 - 5571765 - Direct-Fit Catalytic Converter - Cyl 4-6 - 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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Magnaflow - Corporate Logo
ES#:
4491411
Mfg#:
5571765
Back Ordered
$1523.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Bank 2 Pre-Cat

ES#4487461 - 11787558073 - Oxygen Sensor - Bank 2 Pre-Cat - Located in the front position of the exhaust manifold - Meyle - BMW

Located in the front position of the exhaust manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4487461
Mfg#:
11787558073
Special Order: No Guaranteed ETA
$142.99

This product was last offered at the strikethrough price on
12-29-2025

$123.99 USD
Free Shipping
on orders $49 and up

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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