Seller notes

This offer is for one Oxygen Sensor. BOSCH is the OEM supplier for BMW Oxygen Sensors. Manufacturer recommends replacing O2 sensors in pairs (both Upstream or both Downstream). An older, slower sensor can cause an imbalance in the engine management system, leading to poor fuel economy and possible damage to the catalytic converter. * Improved Fuel Economy* Better Engine Performance* Cleaner Exhaust Emissions Fits: (Please check Compatibility chart above to make sure your vehicle is listed before...

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