AST Suspension Lowering Springs (30mm/30mm TUV) - 2003-2009 BMW Z4 Coupe 2.2/2.5/3.0 (Z85)

The AST Suspension Lowering Springs for the 2003-2009 BMW Z4 (Z85) are high-performance coil springs designed to improve handling and aesthetics by reducing ride height by 30mm. Crafted from premium high tensile chromium-silicone wire, these springs are engineered for durability and consistent performance. Each spring undergoes a rigorous manufacturing process, including cold winding, heat treatment to enhance hardness, and shot peening to reduce internal stresses. The springs are phosphate treated and powder coated, ensuring long-lasting corrosion resistance and a clean appearance. Featuring progressive rates on most vehicles, these springs provide a balanced ride quality, improved cornering, and a lowered stance that enhances the vehicle's sporty profile.

Designed specifically for the 2003-2009 BMW Z4 Coupe models, these springs are compatible with various engine configurations within that range. They serve as a direct replacement for stock springs, offering an upgrade in handling dynamics and visual appeal. Installation is straightforward for those familiar with suspension work, and the kit includes the necessary springs for both front and rear. Suitable for street and spirited driving, these lowering springs are ideal for enthusiasts seeking improved performance and a more aggressive look without sacrificing ride comfort. They are compatible with vehicles equipped with Electronic Damping Control (EDC), ensuring optimal integration with the factory suspension system.