That's some interesting stuff Ecky!
I just did my middle/last o2 and was so worried it wouldn't work. I saw that Honda had them as a set and feared they were paired somehow. I bought two different ones at two different times but installed at the same time (still NTK, 24429 and 24430) and no problems over almost 500 miles now. Passed OBD2 inspection without issue. I paid $67 total after pricewatching on amazon vs over $300 from an online honda dealer.
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