2010 Tundra/2015 4 Runner/2007 Prius
excellent adviseSensor 1 is before the cat, sensor 2 is after.. and I would definitely stay away from the Bosch sensor. Get a Denso or Delco if possible, Denso is most likely the company who makes the OE sensor.
Why not try a dealership that gives discounts to TS memebers.
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