I asked ECUTEK and it's basically economies of scale. The work/research involved compared to number of potential users brought about by the limited number of ISFs will not justify a decent ROI. They also think that the ECU of the ISF is pretty much maxed out that any re program will not yield a big diff.Why are there not too many ecu re-programming options as compared to the bimmer..or are there?
I've reached the maximum governed speed and you sure will need more down force up front to feel safer. I saw the speedo just a tick away from 280kph. I just have the habit of looking at the kph reading since we go metric here. Can it do more? Yes, maybe another 20-30 kph with a good front spoiler.