There are at least three aftermarket tunes - Trifecta, Vermont, and BNR. Currently the one people seem to be happiest with is the BNR tune.
Thanks. Upgraded turbo options is what I was most curious about also, that was one that I wasn't clear on if it was being offered at the beginning of the year.BNR has an upgraded turbo that makes significantly more power in the top end (50hp), and a good amount of power in the mid range (20hp), and that's on top of an already tuned car, which already makes a peak 30-40hp and 60-70lb-ft more.
Note that you will need new valve springs.