Novak Conversions Jeep Wrangler JK engine mounts

O2 sensor replacement options

Is that an issue for me do you the lack of discs? What do they do? I read on charger forums that steel wool packed in the foolers would fix "rich" codes.
 
Is that an issue for me do you the lack of discs? What do they do? I read on charger forums that steel wool packed in the foolers would fix "rich" codes.

Don't know if that's your issue or not, here's the ones I use.

 
Re these the discs you are referring too?

o2 elbow.jpg
 
Novak Conversions Jeep Wrangler JK engine mounts