The ST XA Height & Rebound Adjustable Coilovers 08-13 BMW 1 Series E82 Coupe is a set of performance-oriented suspension components designed to improve handling and ride quality. The coilovers feature adjustable height and rebound, allowing you to customize your suspension setup to fit your driving style and track conditions. The product is constructed from lightweight aluminum and utilizes a monotube design for superior damping characteristics and improved durability. The coilovers are designed to fit the 2008-2013 BMW 1 Series E82 Coupe and offer a range of height adjustment from 0-3.5 inches.