maXpeedingrods Coilovers Struts for Mazda RX-7 FC FC3S 1986-1991 Coil Over Spring Shock Absorber for Mazda Savanna RX7 RX-7 FC FC3S 1986-1991 Coilovers Front Spring rate:10 kg/mm (560 lbs/in);Rear Spring rate:8 kg/mm (448 lbs/in) Adjustable height:YES;Adjustable camber plate:YES Quantity:2 piece front + 2 pieces rear Improve your handling perfor mance without sacrifice comfor table ride.A fast and affordable way to easily upgrade your car's appearance.Ideal for any track, drift and fast road and can also be used for daily driving.