Both the Eibach PRO-KIT and SPORTLINE kit are designed to improve the handling and performance of a vehicle, but they are intended for different uses. The PRO-KIT is intended for daily driving and mild track use, providing a moderate improvement in performance while still maintaining a comfortable ride. On the other hand, the SPORTLINE kit is intended for performance driving and track use, providing a significant improvement in performance with a firmer, more aggressive ride. It's also noticed that SPORTLINE kit lower the vehicle more than PRO-KIT.
