Recommended 02 Sensor

[Modern 3kGT]

Hey guys,

I'm looking to install my new down pipe soonish and I think while I am down their I would like to replace the 02 senors. I have no idea when they were last replaced, if ever... the car has 154k and is a 97 v4r.

Which brand of 02 sensor would you recommend? Future goal for the car is a 500 awhp daily driver.

Thanks, John

[DocWalt]

I used Bosch and had a failure after 9 months, but I attribute it to the failure of the other sensor and flooding the Bosch. Replaced both, one with Denso, one with Bosch. Both worked perfectly after that, direct OE replacements from Rock Auto. Either brand is perfectly suited, IMO.