The ultimate in monotube track car coilover technology. As used on competition winning cars across the world. Including our own 720bhp S15 and 590bhp R32! Performance valved monotube dampers, with 16 stage adjustment . Cold wound springs in 8kg front and 6kg rear. Separate Height and Spring Preload adjustment. Slimmer dampers and springs for better wheel clearance. Inverted front dampers for extra strength and improved unsprung weight. Pillowball top mounts all round - Camber adjustable fronts. Front spindles and RCA's included. Reinforced bracketry for strength and performance needed in performance applications.