i swapped coils/spark plugs few times and come to the conclusion that my misfiring issues were not caused by either coils or spark plugs; remains injector, HPFP or ECU (which i hardly doubt the case)...
i really hope HPFP is the one causing this but since i'm consistantly getting cylinder 5 and 6, it maybe injector problem...
p.s. eric, did u ever get a boost spike 19 psi on pump gas? i just cleared the code and put on map 2 which has boost taper at 18 psi. i smach the gas peddal to see if that misfiring symptom persists, and just saw 19 psi on my boost guage... on pump gas... i was like wtf...