OK so I just ordered my ZZP 3" 304 stainless bolt in d/p w/ the high-flow cat and I just had a few questions.

What should I do next?
I was planning on ordering an Overkill PCM, 180 T-stat and some Autolite 304's, and getting a 3.5" pulley. Do y'all think that will be good enough for no KR? If not what else should I do?

I was also wondering if the o2 sensor will be ok when I install the D/P. It seems like a bunch of people have been setting SES codes when they put their D/P in and I just wanted to make sure I wasn't gonna run into any problems..

Thanks for all the imput guys.