Oxygen Sensor question

[maclean216]

Bought the Flowmaster California direct fit converter (rear one) (Part #910153)and instead of the M18 screw in O2 Sensor bung, it has the two studs for the O2 bung attached with two nuts. Is there another CA O2 sensor that would work for a 2001 CA Toyota 4runner or do I need to weld a bung(funny word) on in its place? OEM or Denso only please.
The Flowmaster rear converter's part number is for 1999-2002 4runner.

Thanks.

 

[maclean216]

2001 4Runner oxygen sensor mystery

Found the answer here. I will report back if everything works and I pass smog.