If you’re looking for high-performance racing coil springs then consider Hyperco springs. Hyperco has a strong heritage of winning. Since the 1965 Indianapolis 500 every race winner has used Hyperco suspension springs.
Hyperco have taken their 50+ years of race-winning experience and applied it to the core of their suspension springs. They provide the tightest tolerances and use superior materials with their expert craftsmanship to bring you the best coil springs on the market.