Eibach Pro Kit Performance lowering springs for Saturn Aura 38103.140 - Eibach PRO-KIT - Performance Springs - World‘s leading Performance Suspension Spring System - Engineered and tested to work perfectly with stock dampers - First step towards a complete sport suspension system - Lower center of gravity – lowers vehicle up to 40 mm - Lowering = Traction + Attraction - Progressive spring design - Performance handling.