when you put a 2.75 upper on a lightning, bbk shorties. o2 sensor simulators, catless mid pipes and an egr delete, when they delete the codes out of the pcm so they will not come back due to the mods. will the obd monitors finally set to 6 out of 8 being ready so it will pass emissions. right now my 02 monitor isnt saying ready neither is the heated 02 monitor and i noticed my rear 2 02 sensors are reading 0 volts with the simulators installed. I am going to put the egr and dpfe and egr solenoid back on and see if it makes any of the obd monitors set to ready