You'll have to send it back to Bluefin to have it reprogrammed, only works on one car I'm afraid. Worth going elsewhere if you want some serious performance out of the car, but if you're just going to do the odd track day etc. Bluefin is more than fine

The flat spot is down to the standard mapping, unless its very jerky and can be classed as a missfire. But the 5k cough is a common occurance on the Ford map. Look up AE and AF maps. You really need to go on the RSOC, millions of threads of the same titles posted every week.

But after fitting the actuator, you'll immediately feel a great difference, the power delivery is still immense, but more gradual