The H&R 96-03 BMW 525i/528i/530i E39 Sport Spring (Non Touring) is a performance suspension system designed to improve the handling and ride quality of BMW 5-Series vehicles from 1996-2003. This system features progressive-rate springs that reduce body roll and improve cornering stability. The springs are made from high-quality steel and are corrosion-resistant for long-term durability. The kit also includes bump stops and hardware for easy installation. The kit is designed for non-touring models only.