when the new cattman headers arrive and are installed will the two front o2 sensors have a place on the headers to be installed, and if they do will they be a pita to screw in, last time i took out a rear o2 sensor it stripped itself and i had to buy a whole new pipe for it to thread into

 

Yes, the Cattman headers have bungs for the primary O2s and the sensors should screw in just fine. Once again, another question that you could have asked Brian Catts instead of starting a new thread. And if your car needs a spot for the EGR, you should specify that too.