I would personaly start off with the basics,like mentioned earlier swap the 3-bar sensors around and see if you notice any difference,also a can of maf cleaner is in order and try cleaning both of them,1)is there any oil buildup arround the throttle body?if so you could have oil inside the map sensors coming from your CAC causing your issues,2)are you using a full synthetic oil? and as mentioned a while back it is important to install new gaskets X4 FOR A SECURE LEAK proof system,the exhaust system only builds up to a 500 degree level lol,after a couple hundred mile due to the heat expansion,re-torque all the bolts,if a leak is detected it will emit improper AFR readings causing your symptoms,a(ALMOST DONE)like mentioned a while back damage to the 02 sensors upon install,(TWISTED)wiring can lead to your issues as well,all the above mentioned should be installed with caution,because of the fragile components,personaly would try to rule out the above mentioned,ESPECIALLY IF YOUR ISSUES STARTED RIGHT AFTER THE DP AND EXHAUST INSTALL,just my 2 cent. Z
