Review on 🔥 GM Genuine Parts 213-4229 Heated Oxygen Sensor: Enhance Performance and Efficiency by Mirzet Gosselin

I haven't looked at the rest of the comments here but they were the only ones available at the time and I needed them. But like the rest of the people who have commented here, this is not AC Delco, although you will be charged a premium price for AC Delco parts. The brand is YG2 and I assume these are very cheap parts from Japan. However, I only bought them for a year and my car misfired and the reason was that these parts were bad. I bought the Denso brand here and they did a lot better for a fraction of the cost. I can't get them back now of course but I definitely got robbed for $50 a piece which ended up wasting $100.