I can't find this O2 sensor

[Daved]

I can find the 3 I don't need to change. But where is bank 1 sensor 1? I'm guessing I have to take off the strut tower brace.

I can't see anything from underneath. I guess it's right above the cat just like the front?

 

[FiveLeeter918]

Pull passenger tire and look at the top of the strut