I think there are only 2 in MA, on the flipside 100 octane is much more accessible where I live, like 300 ft from my house lol. Question becomes is it worth the $9.00 a gallon, have to wait and find out but I think regardless I will get a tune for 93 and 100 if I go this upgrade depending on results. E85 is a lot cheaper but 100 will yield more power if you are at the limit of the fuel system anyways and don't plan on adding aux fuel.