I just read this, as my 2012 has decided to not work very well, after this FSA. I get the hesitation, etc,it gets worse as the air temperature increase. It's actually worse than when the car was brand new. I am going to ask my dealer if I can just go back and have it reprogrammed to the previous TSB. Last night, the hesitation on acceleration was so bad, it felt like had a case of whiplash........
Now: 2012 SEL Sedan, with Selectshift Transmission, 17" Polished Aluminum Rims, K&N Air Filter
Previously: 2000 White ZTS, 15" Painted Aluminium Rims