I recentley purchased a 2002 OZ Rally that is a bad cat (top one). I found that it was cheaper to purchase after market headers and a K&N short ram than a stock cat/header from the dealer. I know I have to us spark plug anti foulers but the top 02 sensor bung is right on top of the new headers and it will look pretty dumb if I stick it right on top. Has anyone moved the 02 sensor lower so its out of the way? If so how did you do it? Pics if possible will help. Here is a pick of the headers

 

Only way to do it without making it look worse would be to just thread a cap into the current 02 bung then drill a hole where you want the sensor to go and weld in another bung.

 

I think all three O2 bungalow are threaded if so would I just extend the wire by crimping it and just run it down? If so do i just use the plug anti foulers on both O2 sensors and call it a day?

 

see thats why I never messed with N/A headers.

Go with 03lances Idea, take it to a muffler shop circle with a permanent marker where you want the hole and they will drill and weld in that spot for yeah. It will save you a headache

 

Do you still have your 2nd cat? If so you might not need the anitfoulers but should the need arise you put two of them into the rear 02 ONLY. If you have to extend the wires to accomodate the new location just make sure you cut them on the engine harness side as they are sheilded wires down towards the actual sensor.