Review on 🚀 Enhance Engine Efficiency with Denso 234-9122 Oxygen Sensor (Air and Fuel Ratio Sensor) by Rushabh Bear

This is an OEM review and so far there have been no check engine light or other issues after fitting. Our old upstream sensor in our 2005 Subaru Outback failed and after they charged us $80 for a full diagnostic check I didn't feel like paying dealer prices for the sensor and labor (they charged us $240 for the sensor and $520). for all the work!). Found this for under $100 and had a local mechanic install it who didn't charge us for the work as he was doing other work on the engine at the time. All in all we saved $420, very nice.