Just a quick one in case anyone is thinking of fitting these to an NA (I don't think there is a version for turbo).
I got the following info from Eibach UK and Eibach DE.
The spring number ending VA is for the front, 9 mm diameter progressive rate
and HA is for the rear 10 mm diameter liner rate
The reason I post is that the fronts are longer than the rears until they are pre loaded. It would be easy to automatically fit the longer (but much softer) springs to the rear............
Paul