I installed the stg 1 Bluefin map on mine.
Yes it does spike the power delivery; from 2400rpm it ramps up the power massively and it does tail off higher up the rev range, but
It is easy to install and remove.
Is good value for money in my opinion.
Certainly makes the car a lot quicker and gives you masses of torque in 3rd, 4th and 5th gears.
Probably nowhere near as good as a live re-map, especially if you go above stg 1.
If I ever decide that I need more power, I will go with a live re-map for sure, but for now the power gains are impressive and simple to achieve.
No idea on the power figures, they state that it will go from 230bhp to 290bhp, but the torque has made a massive difference and overtaking is a breeze.
Not sure how good it is with K03?!??