Got our Sport 2.0T last month. Now has 700 odd miles - break-in is done! Drove neighbor's 1.5T and was sold, but I wanted more oomph. Happy I went for the 2.0T, pleasant surprise at the little extras.
That was a thought/concern of mine also... Looking at some of the dyno sheets on Hondata they recommend 91 or higher octane same thing w/the dyno sheets using KTuner.I have been thinking of the Hondata Flash offering. Don't relish the thought of having to go back to Premium Gas as that was a welcome relief from my other cars. Will have to read up some more or call them up. It's a relatively cheap mod for what it will do. Right now I'm just starting to explore the performance capabilities as it's just passed the break-in period.