Swift Standard Conventional Springs 16in length (2.5" ID on one end), 5 in OD, 125 lbs/in Assist Springs 70mm ID All Kits come

70mm ID All Kits come with 4 thrust sheets & 4 metal washer sheets (1 kit for 2 springs)

TW) has a much quicker transient response

swift spec-r springs are designed to the upper limits of the oem shock valving

Helper springs allow the spring to stay on mounted on the coilover perch when the shock is under negative or zero load

Swift Standard Conventional Springs 16in length (2.5" ID on one end), 5 in OD, 125 lbs/in Assist Springs 70mm ID All Kits come16in length (2. 5" ID on one end), 5 in OD, 125 lbs in Swift Standard Coilover Springs are made from a proprietary (H5S. TW.) Material. This allows Swift Springs to manufacture a spring that is has more stroke, increased traction and handling as well as a spring with less coils, resulting in a lighter spring with less unsprung weight. The same springs are used in Super GT, Formula Nippon, F3, F3000, Super Taikyu, IMSA, Pirelli World Challenge, Rally