Progress is world know for their suspension packages; they are one of the best. They have put the pen to the paper to design a complete package for Hyundai’s Genesis coupe. A well tuned suspension improves driving in all aspects by allowing you to power down more effectively, better translates steering input, and provides a more aggressive stance. The kit includes an adjustable solid 27mm  swaybar, a 24mm solid rear swaybar, 210 lbs/in. rated front springs, and 420 lbs/in. rated springs for the rear (required bushings, brackets, and synthetic grease is provided).

[source: progress group]