The H&R 99-05 BMW 323Ci/323i/325Ci/325i/328Ci/328i/330Ci/330i E46 Sport Spring (w/o Sport Susp.) is a performance suspension upgrade for the BMW E46 3-series models. This spring kit is designed to give your vehicle improved handling and a lowered center of gravity for better cornering and stability. The kit includes a set of four progressive-rate sport springs, which are designed to work with the standard suspension components and provide a 1.3 drop in ride height. This kit is a great way to upgrade the handling of your BMW without having to invest in a more expensive sport suspension system.