It is not listed in the official Eibach catalogue yet, but available since 1 or 2 months here in germany.
The Eibach Sportline Kit( red ) spring set is approx 10-15mm lower at the front and 5-10mm lower at the rear compared to the Eibach Prokit (black) . This means that for the GTI with the works sport lowering (approx 15mm), the additional lowering is approx 35mm/ 25mm.
For all Golf 7 are 4 diff. part no. available, but for the GTI it is always part no E21-85-41-23. They are also listed at ebay.de at several dealers. Some pictures which I have received fro Eibach , after their testride :
[/img]