im building my d16z6 and im wanting to see how much i can get out of an oem n/a built motor. and before you say its just a wast of my time just let me tell you i know i wont make any real power out of an n/a d series but i wanna stay all motor and i wanna stay sohc and oem, so i was wondering what oem pistons i should go with, im thinking about d16a6 pistons iv heard they will work but not real sure on that one, just wanted some feed back and other opinions.