AST Suspension Lowering Springs (25mm/25mm) - 1991-1994 BMW Z1 (Z/B)

The AST Suspension Lowering Springs for the 1991-1994 BMW Z1 (Z/B) are high-performance suspension components designed to reduce ride height and improve handling. Constructed from premium high tensile chromium-silicone wire, these springs are carefully handpicked by AST engineers for their quality and metal consistency. Each spring undergoes a rigorous manufacturing process, including cold winding, heat treatment to enhance hardness and minimize internal stresses, followed by shot peening, phosphate treatment, and powder coating to ensure durability and corrosion resistance. Featuring progressive rates on most vehicles, these springs provide a balanced combination of comfort and performance, making them suitable for enthusiasts seeking improved stance and cornering capabilities.

Designed specifically for 1991-1994 BMW Z1 models, these lowering springs are compatible with vehicles equipped with Electronic Damping Control (EDC). They serve as direct replacements for stock springs, offering a straightforward bolt-on installation that enhances vehicle handling and aesthetics. The kit includes the necessary springs and mounting hardware, ensuring a complete upgrade. Ideal for street and spirited driving, these springs are engineered to deliver improved stability, reduced body roll, and a more aggressive stance, making them a popular choice for performance-oriented BMW owners seeking a reliable suspension upgrade.