Designed and tested by Eibach's suspension engineers and performance driving professionals to deliver aggressive good looks and high performance handling, without ever compromising safety or ride quality, The Eibach Pro-Kit is a perfect solution to take your street car to the next level. Featuring Eibach's legendary progressive rate spring technology, these springs are a tried and true upgrade and the perfect pairing for Eibach Pro-Dampers and Anti-Roll-Kits.