I just put in my new 3" zzp downpipe and the O2 sensor won't reach the hole. I did get an extension wire harness in the box but I can't find the other end of the o2 sensor to use the extension. Any help on location of the wire plug would be helpful ! Do I even need to use the sensor or just plug the hole it with a bolt ? Thank you.

 

If you're under the car you'll have to move all the way to the front and it's on top of a joint. It's kind of hard to see and you'll have to move the connectors to see the clips.