Bosch 17091 O2 Sensor C-Series (X2M5 Y2M3 NPQ3 NPR3 PNN3

(X2M5 Y2M3 NPQ3 NPR3 PNN3 PNN4 NSN4)

The kit includes two Aluminum Pivot Screws with integral Pivot Washers

31110PO10032

Ensure there is adequate space under the vehicle for the valves and electronic valve motors for your specific vehicle setup <br> WELDING REQUIRED

Not confirmed to fit CRX / EF

Bosch 17091 O2 Sensor C-Series (X2M5 Y2M3 NPQ3 NPR3 PNN3Bosch 17091 Premium Wideband A F Oxygen (O2) Sensors are designed for use with aftermarket high performance wideband kits. Wideband air fuel sensors perform the same function as a regular O2 sensor, but they precisely measure the amount oxygen in the exhaust rather than just switching between rich (too much fuel, not enough oxygen) and lean (too much oxygen, not enough fuel). Our wideband sensors use a more sophisticated sensing element that provides