Just wanted to chime in here and let everyone know this works in MA as I just passed inspection this morning. I am running vrsf catless downpipes with no secondary cats. I stacked two spacers on the downstream o2 sensors, flashed back to stock and left the dme unlocked. I then used the tool/app OP recommended to check the status of my monitors and after about 100 miles of driving all were listed as passed. EVAP took the longest to reset for me. +1 for not dealing with installing stock downpipes for every inspection
