2024 Zx6r Exhaust Slip-On. I’m currently deleting the first layer cat on the stock exhaust and leaving the second layer untouched while putting on a m4 slip on. Is it okay to run the bike with no o2 sensor or do i keep it in?

We’ve just finished up our custom mapping r&d for slipon exhaust systems on the brand new 2024 zx6rs for our ecu flashing service, and we’ve gone ahead and c. Is it okay to run the bike with no o2 sensor or do i keep it in?