This modification is probably the most popular suspension upgrade performed on late model Mustangs today. These Hi-Performance springs will lower your car approximately 1.3 & 1.4" These springs will add performance and looks to your Mustang. Lowering springs are not only affordable, they are relatively easy to install and offer results that not only offer much improved ride stance, but also improved handling characteristics and street performance. To compliment these popular lowering springs we offer a complete line of polyurethane bushings and caster/kits for further performance and tunability.