configure base tune file step 3

I have a 2020 sti. my question is-does my car also have a stock wide band afr sensor?

Most new cars, especially performance cars will have the capability to read a wide range of AFRs (Wideband). If you can plug in a scan tool to your car that is capable of reading O2 values, you will have your answer pretty quickly. Other than that, you can look at how many wires your O2 sensor has or check the forums for your platform.

Im taking that as a yes. since its a wrx sti

Thank philip ! Just learning. Coming from 80s foxbody Mustangs to 2020wrx sti is a major learning curve also never tuned before. not a idiot though just new to the fundamentals and theory. thanks again for your response