Oh sure. I just wanted to give my some info / my feedback. I know I was able to save a lot of money, because other drivers were able to help me with info/research and kind of point me in the right direction. (I'm fairly new to German cars. My M5 is my 1st German car).
I invested about 6 months in researching when I decided to change my suspension.
Of course my 1st choice was DINAN, but as I did further research and I learned about Blstein, AC Schnitzer, ST / KW and several others. I think I jumped on ST mainly because I got good feedback from other E39 / E60 drivers. Plus the price was too good to pass. (LOL).
If you have any questions or need any info, let me know. I'd be more than happy to share.
Best of Luck!!!!