The LESJOFORS 4008521 Front Coil Spring is engineered to meet the specific demands of BMW X3 and X4 models equipped with sport suspension systems. Designed to maintain optimal ride height and handling stability, this coil spring ensures a smooth and controlled driving experience, even under varying load conditions. Constructed from high-strength steel, the spring undergoes rigorous heat treatment and shot peening processes to enhance its durability and fatigue resistance. A multi-layered corrosion-resistant coating, including zinc phosphate and epoxy powder coating, provides superior protection against environmental factors, extending the spring's lifespan and reducing the frequency of replacements. The pre-setting process ensures that the spring maintains its shape and performance over time, eliminating the need for settling adjustments. By choosing the LESJOFORS 4008521 Front Coil Spring, fleet operators can enhance vehicle performance, reduce maintenance costs, and improve overall operational efficiency.