Bosch Oxygen Sensor Set - Pre and Post Catalytic Converter - N55

Product Details

Extreme exhaust heat and carbon buildup degrade your factory oxygen sensors over time, sending lazy data to your DME and robbing you of performance.

We’ve taken the guesswork out of restoring your engine's efficiency. We paired the exact primary and secondary sensors your car needs into one comprehensive kit. Featuring Bosch pre and post catalytic O2 sensors. This kit ensures perfect communication with your factory electronics. No universal-fit headaches, no splicing, and no coding required. Just plug them in, clear your codes, and get your BMW running right.

What's in the Box:

• Bosch Pre-Catalytic Oxygen Sensor

• Bosch Post-Catalytic Oxygen Sensor

Prop 65 Warning

Kit Contents

Product Q&A

Lifetime Replacement

Fits These Cars