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BMW Z4 sDrive35is N54 3.0L Exhaust Emission Parts

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Over time, factory oxygen sensors degrade from extreme exhaust heat and carbon buildup, leading to poor fuel economy, lost performance, and failed emissions tests. 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#:
5481192
Mfg#:
BFR1/2O2SKT
In Stock
$327.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#4488589 - 21-171 - Direct-Fit Secondary Catalytic Converter - Right - Keep your emissions in check. Primary cat in exhaust manifold. - Magnaflow - BMW

Keep your emissions in check. Primary cat in exhaust manifold. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
48-state legal - not for sale or use in California

Brand:
Magnaflow - Corporate Logo
ES#:
4488589
Mfg#:
21-171
Ships in 1 Business Day
$597.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4488597 - 21-172 - Direct-Fit Secondary Catalytic Converter - Left - Keep your emissions in check. Primary cat in exhaust manifold. - Magnaflow - BMW

Keep your emissions in check. Primary cat in exhaust manifold. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
48-state legal - not for sale or use in California

Brand:
Magnaflow - Corporate Logo
ES#:
4488597
Mfg#:
21-172
Ships in 1 Business Day
$600.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Includes refundable $1800.00 core charge. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
3104379
Mfg#:
18307647051
Ships in 6 Business Days
$4061.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Located between downpipe and mid-pipes, 2 required affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
5470577
Mfg#:
18307553603
Ships on Oct 19, 2026
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ON SALE! SAVE 20%
$17.99

This product was last offered at the strikethrough price on
05-29-2026

$14.39 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#4900503 - 11787558087 - Oxygen Sensor - Bank 2, Pre-Cat - Restore the performance and reliability of your BMW with this essential emissions component from Meyle. - Meyle - BMW

Restore the performance and reliability of your BMW with this essential emissions component from Meyle. 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#:
4900503
Mfg#:
11787558087
Special Order: No Guaranteed ETA
$151.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2975334 - 51718 - Direct-Fit Catalytic Converter - Front (Front Position) - Keep your emissions in check - Magnaflow - BMW

Keep your emissions in check affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
48-state legal - not for sale or use in California

Brand:
Magnaflow - Corporate Logo
ES#:
2975334
Mfg#:
51718
Back Ordered
$757.00 USD
Free Shipping

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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