A spring is a spring right?  Wrong! When UMI chose to manufacture our own line of springs we went all out.  Designed in conjunction with a leading Sprint Cup chassis engineer, these  springs are the best in the business. Our springs are wound from 5160 CrSi premium  wire and feature a linear 600 lb/in rate. UMI’s front springs are stiffer than  stock to provide increased performance with decreased body roll and a lower  center of gravity. These springs are suitable for Auto-x and Pro-Tour  applications as well as corner carving/cruising. The ride height is engineered  for a 2” lowering with standard SBC as well as LS power (lightened cars may  require spring trimming). The front springs are also suitable for full weight  Big Block applications when ¼” nose down rake is desired. They have a tough  black powder coat finish and UMI proudly manufactures these premium quality  springs in the USA.