1st time Star Smog check on my 1990 Miata

[MrPoy]

Hello! My 1990 miata is due for a Start smog check later this month. Currently I have a Raceland headers in my car. I also believe that my O2 sensor may need to be replaced as well

My question is, Will replacing my header to an OEM (as well as gaskets) and O2 sensor enough for me to pass the Star smog check?

I have a limited budget at the moment but I'm also looking at the Jackson racing headers as well to prevent future headaches.

Is there any tips you guys can give a newb car guy?

Thanks in advance!