Fits 2015-2018 Mustang GT and 2.3L EcoBoost® Coupes Kit includes: M-5490-G Mustang Track Sway Bar Kit and M-5300-X Mustang Street Lowering Springs Lowers car approximately 1" May cause a slightly harsher ride compared to stock springs Gives a more aggressive-looking stance, as well as increased handling dynamics, yet maintains excellent ride quality Highest quality manufacturing €“ produced by OEM spring supplier Includes M-5570-B Jounce Bumpers and all Sway Bar mounting hardware and bushings For replacment sway bar bushings use Track Sway Bar Bushing kit M-5490-BKD NOTE: Please reference a Ford service manual for installation information and correct torque specifications. May require alignment after installation