Thanks M140i_man_RWD and M-U-NAS for your comments. I agree with your comments about coilover's being overall cheaper. I'm afraid my original post should have been clearer. I currently have Bilstein B8 dampers installed on my car with Eibach Pro Kit SP springs. I was considering the MSS springs so that I could adjust the height of the car, whilst retaining the B8 dampers.