just to give an update to all those interested: I have driven the car on the street for a couple days and have noticed a large difference between stock and the tune. The biggest thing I have noticed is much more power in the lower rpm level 2-4k.
I can actually spin the tires while driving in 2,3 rd gear from a rolling punch, around 3k rpm level, wasn't able to do that before, with the same tires as before.
For this (not spinning the tires, but the power), it was worth it as I am usually in that rpm range on the street. I haven't been above 5k yet so I can't say for the upper rpm band but I will be on the track tomorrow so we will see.