Description The Eibach PRO-KIT is a premium line of lowering springs designed to enhance the performance and appearance of your vehicle. Whether you’re a car enthusiast looking to improve the handling of your daily driver or motorsports competitor looking for an edge on the track. the Eibach PRO-KIT has you covered. This Part Fits Year Make Model Submodel 2014-2017 Porsche 911 Turbo 2014-2017 Porsche 911 Turbo S.