So did you drive your car around a little before going on the dyno after the tune? I heard (and mind you people can tell me pretty much anything about cars) the vehicle has to "get used to" the new setup.
After I tuned my car I wasn't that sure I could feel any significant difference in performance. According to the guys that tuned my car, all kinds of sensors needed to learn the new setup first. After I spent about a tank of gas I started to notice more aggressive acceleration. Any thoughts on this?
I still need to head over to Germany to test the high speed performance. Will probably do that next year as the weather is getting worse over here. Topspeed I reached without the tune is 241km/h on the speedo on a flat straight. Very curious to see what it does after the tune