Unlike competitors spring and shock kits, H&R Cup Kits are not merely a 'matched' spring and shock package, but rather a specially engineered 'solution' with springs and shocks being engineered individually in every application. This takes the guess work out of your spring and shock selection, and provides you with an application specific, precisely calibrated spring and shock set designed to deliver improved handling, uncompromised ride comfort and sleek styling in one precision engineered package.