Swift Springs Metric Coilover Springs - ID: 70mm / Length: 6" Spring Rate:20K 2001 BMW Z3 M Coupe

2001 BMW Z3 M Coupe RWD (E36/E38)

2002 Ferrari 360 Modena / Spider

1996 Mazda MX-3

1999 Honda NSX

Swift Springs Metric Coilover Springs - ID: 70mm / Length: 6" Spring Rate:20K 2001 BMW Z3 M CoupeSwift Springs Metric Coilover Springs in 70mm ID and 6" (152mm) length deliver the traction, handling, and consistency that competitive drivers rely on. Engineered for coilover suspension systems using metric sized dampers, these 70mm Swift coilover springs are manufactured in Japan from proprietary H5S. TW high tensile alloy steel, providing a significant performance advantage over conventional silicone chrome springs. With fewer coils per spring,