Same Eibach springs are used for both versions.
Apparently, the diameter of the springs to fit around the strut (stock or Konis) is different. Although when I examined both versions, I saw no visual difference.
Why waste the time and money to do 2 installs?
Some people have had bad experiences with GCs + any strut other than Koni.
Others have reported no problems with GCs + any other strut.
McMaster's beefier bearings are a must with GCs.
Camber kit is a good idea, too - especailly if you plan to run low.
HTH
