Aazon.co: Eibach 8410.140 Pro-Kit Perforance Spring Kit When combined with Plus-1 or Plus-2 wheels and tires, the Eibach Pro-Kit is the finishing touch to a winning recipe for performance. Pro-Kit also reduces excessive fender-well clearance, making your car look just as hot as it performs. Pro-Kit lowers your Mustang's center of gravity, reducing squat during acceleration, body roll in corners and excessive nose-dive under braking. Ford Mustang EcoBoost V6 Lowering Springs Eibach EBCH-5557.140 PRO-KIT Performance Springs (Set Of 4 Springs Eibach 35147.140 Spring Set I'm running the Eibach Pro-Kit on mine and it's not as low as the sport lines, but enough drop to be noticeable against a stock height car. owns... Every Eibach Pro-Kit is designed and tested by our suspension engineers and performance driving professionals, to deliver aggressive good looks and high performance handling, without ever compromising safety or ride quality. Eibach Pro-Kit is the perfect answer for most frequently-driven street cars. Eibach 2015-2020 Ford Mustang (EcoBoost and V6 w/o Magneride) Pro-Kit Fits 2015-Up Ford Mustang 2., 3L EcoBoost and 3., 7L V6 , Lowers Front by 1., 1-inch/Lowers Rear by 1., 0-inch