Push past the factory boost limits without paying the "BMW tax." Ensure accurate boost readings and safe fueling up to 36 PSI with this Bremmen Parts 3.5 Bar sensor and Plug and Play adapter kit.
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Sluggish O2 sensors don't just trigger annoying Check Engine Lights; they cause poor fuel economy, rough idling, and can even degrade your expensive catalytic converters over time.
10X Entries For Our 25th Anniversary Sweepstakes!
Over time, factory oxygen sensors degrade from extreme exhaust heat and carbon buildup, leading to poor fuel economy, lost performance, and failed emissions tests.
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Brand:
ES#:
5481192
Mfg#:
BFR1/2O2SKT
In Stock
$400.99
This product was last offered at the strikethrough price on 07-14-2026
Random check engine light got you down? It's probably a bad sensor! We have all the electrical sensors your engine needs to send information to your ECU so everything stays happy. Find it, fix it, and replace it with our OEM sensors or save some money with quality aftermarket sensors.
Lifetime Replacement
