i ran 15.7 with just flashpro tune in colorado higher elevation. had pretty crappy tires on it at the time also. car is 07 with 100k miles at the time. i got a vid and a time slip i could send ya that shows the pressures etc. need more practice though for sure ha ha.
Just went for the first time ever. Never ran before but ran 16.4 first run and 16 flat the second time. Lost traction first and second, takes some getting used to. The track is alot different than the street.
I ran a 15.4 @91mph on a completely stock 2009 FA5, I wasn't happy with my launches with the best of a 2.3 60ft, I think that at the track I run (which sucks) I could get a 15.2 or 15.1 out of it, at a good track I might dip into the 14's