Not you. The OP did you pass? A couple years ago they flagged us all and had maybe got more than they bargained for. My **** has been legit for the last two years, still on SD and e85, but OE exhaust, cat, evap + EGR intact and functional. Turns out the MAC guys are (or at least the ones I met) super nice and into cars/ performance and modding and were really helpful /knowledgable about getting everything working properly to pass.
I'm not sure if they relaxed a bit since?

How did the OP ever make out with this?

Sorry to bump this old thread guys, but it's been a year, and as you know MA is on the forefront of emissions crackdown. Has anyone had experiences this year? I have to go in next week and and get a temporary tune (was just rebuilt) in NH. I need to figure out what will get me to pass as my desired tuner lives a few hours away in MA and I have to get a few miles on the motor before I go to him.