here are thedetails brother.
if anyone else is wanting to try this mod, I used 4 Help! # 42002 Spark plug non-foulers, 2 of them I drilled with a 31/64 drill bit, and the other 2 I did not modify. I installed the un-modified non-foulers into the O2 sensor bungs on the exhaust using never-seeze on the threads, I then lightly packed the non fouler with 00 Stainless steelwoo. I only packed the area below the threads, and it is loosely packed, not jammed in there. I found that I still got a CEL when I drilled the non-foulers with a 1/2" drill, so I bought another set and drilled them 31/64" I chucked them up in my lathe and bored the hole to make sure it is perfectly centered, as there is not alot of clearance to the O2 sensr, and I did not want it grounding out or rubbing against the non fouler. The only difference compared to the write up on the Charger forums is the hole is smaller, it is only 1/64" smaller, but it seems to work so far. Like I said, be careful drilling out the hole, as you want it centered and straight. Good luck and I'd appreciate any feedback. Murf
and her is the parts he is talking about