Spring rate: 5.0kg/mm Front and Rear
Sustec Z40 Coilover is a brand new Coilover system made by Tanabe. Sustec Z40 uses advanced dampers made by KYB and offers fully adjustable ride height, 40-way dampening adjustment, and a twin tube design. Made and tested on every vehicle application to meet the maximum performance and direct fit.
SUSTEC PRO Z40 uses the same high quality PRO210 Springs found on the SUSTEC PRO FIVE Coilover System.
These are the same springs that were used in the Takata Dome Racing Honda NSX in the JGTC GT500 Class in Japan.