Skunk2 Race Spring designed as a direct replacement for Pro-C and Pro-S II rear coilovers lets you dial rear stiffness and ride height for 2006–2011 Civic applications. This elliptical rear spring is 6 inches long with a 2.5 inch inner diameter and a 14K (≈784 lb/in) rate, offering a compact, high-rate option to sharpen handling without changing shock valving.
Skunk2 Universal Race Spring (Elliptical) - 6 in.L - 2.5 in.ID - 14kg/mm (0600.250.014E)