2019 Subaru WRX STI with 18x10 38 Enkei Rpf1 and 255 35R18 Goodyear Subaru WRX STi (2015 2021) VA Eibach Pro Kit Lowering Springs SWIFT SPORT SPEC R LOWERING SPRINGS 15 20 WRX Subie Supply Co: Your RS R CANADA SUBARU WRX STI 2015 2021 DOWN SUS SPRINGS. Swift made Sport Springs 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. Swift Spec R Sport Springs were engineered with 3 characteristics in mind. Modified ride height compared to Sport Springs to maximize optimal suspension geometry Further increasing the spring rate to enhance overall performance. The increase in spring rate is based on the upper limits of the vehicles factory shock valving Maintaining optimal comfort level for street use Spec R springs are wound with the same engineering and material as our sports springs. With the exception of stiffer rates and slight change in ride height; you can expect the same characteristics as our sports springs. Built for track duty, Swift Spec R springs are designed at the upper limits of the OEM shock valving. Track tested and tuned for optimum performance yet comfortable enough for a daily driver. Features: Spring Rate Front: 352 Lbs Inch Spring Rate Rear: 413 Lbs Inch Front Lowering: 1 Inch Rear Lowering: 1 Inch Improved handling Made for the track enthusiast Reduces body roll Fitment: Subaru WRX Sti VA 2015 2021 Note: Vehicle drop rate is based on the year, model and option of the test vehicle, and may vary based on each vehicle condition