Review on Denso 234 4733 Oxygen Sensor by Ron Mohammed

I saw good reviews and wanted to wait until I had enough time with them. So, from November 18th to December 27th everything was fine. Inspection passed, a new exhaust pipe installed along with a catalytic seal. After that, the element was a dream. Rated 19 mph on the 205k engine, mixed city driving. The 28th lamp went on. More precisely, the same bank that was replaced. Very disappointed, especially after all the hard work. I was going to buy this with the bench version 2 and set it up for my mom for her element (same age). I'll have to look elsewhere and see what I do with the broken part. The only reason it gets 2 stars is because I was able to pass annoying controls in my states.