Original Springs
Hello!If you use original wheels,I would put about 15mm spacers around.
I ordered Piecha lowering springs(from Germany?)but they were made by H&R.They promised about -30mm(little more than inch)lowering
From original(I think AMG is allready -15mm) ,so I calculated ,it should lower my car extra 15mm,because I have AMG package.
But car went 30mm lower,and it was too much for me because I have 22" VOSSEN Wheels in my car.
So I needed to raise car again about 12mm again,with SPACCER system.

Here is some pictures of my car:
first with original AMG
Then with H&R