Skunk2 Race Spring crafted as a direct replacement for Pro-C and Pro-S II rear coilovers suits 2006–2011 Civic applications needing increased rear spring rate. The elliptical spring is 6 inches long with a 2.5 inch inner diameter and an 18K (≈1008 lb/in) rate, providing a high-load option to reduce squat and improve balance for aggressive driving or track use.
Skunk2 Universal Race Spring (Elliptical) - 6 in.L - 2.5 in.ID - 18kg/mm (0600.250.018E)