Amoi,
Your spring is indeed msport. Part No: 31336756966 (front) and 33536756984 (rear). Mine is Mtech. Part No. 31331093084 and 33531095712 (rear).
Swan,
I had the eibach and bilstein combo. It is not harsh but I find the springs too soft. Whilst cornering is good, the car bounces when going through road undulation at high speed and seems to be all over the place on low speed on bad roads. Not my cup of tea.
I had it removed and got the H & R. Stiffer and firmer than eibach. As a result, the car is much more composed and firmer when going through bad roads. Cornering is still superb!!!! I actuallly love this set up.
If I love this set up, why do I want to change too msport? Simple..this is called backside itchy and always looking for different set up to see how the car behaves.