Tein has used its years of experience in various motor sports to produce a kit that provides the ultimate balance between comfort and performance. Developed for drivers seeking an aggressive coil-over that can be used daily, and provide all the adjustments needed for circuit use. The flex damper kit features the latest technology for all drivers who are seeking performance, and adjustability, while not giving up all ride comfort. Tein has incorporated separate spring perch height, and shell case length adjustment, which allows the suspension to retain more stroke and allows for more suspension tuning. The flex damper kit includes pillow ball upper mounts, which increase steering response; 16 levels of damping force adjustment, and is compatible with the EDFC (Electronic Damping Force Controller) for added convenience and adjustability.