FINALLY i got someone at pacesetter that knew wtf they were talking about. Apparently the headers you have were a first batch set, they did away with the bung closest to the head on yours due to its lack of being able to read all 4 cylinders on 1 side. I had to buy O2 sensors bungs and spark plug non-foulers to try to space the O2s out correctly.. I was sold 2 18mm non-foulers per O2 to keep it from throwing a code.. I guess Ill find out tomorrow when i put everything on. Thanks for all your help!