The (SS) Super Street Coilovers is the only entry level coilover network designed and offered specifically for the Z32 on the market that offers a 15 way dampening adjustable strut, with the ability to adjust ride height independently of the spring load settings through its threaded lower shock body. (These key features are common with all 4 lines of POWERTRIX Coilovers). It is the perfect combination of aggressive street and light duty weekend racer and offers the best of both ride comfort and performance orientation. Spring rates: Front 8kg/mm, Rear 6Kg/mm.