Swift Standard Coilover Springs 16in length, 3 in ID, 300 lbs/in Metric Coilover Springs and many other professional racing

and many other professional racing avenues

Includes custom made Thermal Flex silicone couplers & OEM Tridon stainless steel marine grade hose clamps

48 vane ventilation

Formula Nippon

Swift Spec-R Springs 09-16 AUDI S4 4X923R

Swift Standard Coilover Springs 16in length, 3 in ID, 300 lbs/in Metric Coilover Springs and many other professional racing16in length, 3 in ID, 300 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 America, VLN, Le Mans