Quote Originally Posted by JerzNick View Post
The sensor is for upstream correct? My exhaust has two oxygen sensors.
Huh?

We all have two o2 sensors from the factory, 1 before the cat and 1 after.

The wideband o2 sensor is a seperate sensor that goes into the exhaust just after the front o2 and before the cat. Thats why it comes with it own gauge.