Swift Spec-R Springs are designed at the upper limits of the OEM shock valving. Track Tested and Tuned for optimum performance yet keeps the quality ride you get from the showroom, and adds improved handling and lower ride height for driving enthusiasts and style minded drivers who demand only the best. From HPDE events to SCCA competition, Swift Spec-R Sport Springs are made for the track enthusiast looking to take their vehicle to the next level. Spec-R springs are wound with the same engineering and material as our Swift Sport Springs. With the exception of stiffer rates and slight change in ride height; you can expect the same characteristics as our sport springs.