AST Suspension Lowering Springs (50mm/40mm TUV) - 1999-2005 BMW 3 Series 320D/6CYL Touring (E46)

The AST Suspension Lowering Springs for the 1999-2005 BMW 3 Series (E46) are high-performance suspension components designed to reduce ride height by 50mm front and 40mm rear. Crafted from premium high tensile chromium-silicone wire, these springs are engineered for durability and consistent performance. Each spring undergoes a meticulous manufacturing process, including cold winding, heat treatment to enhance hardness, and shot peening to improve fatigue life. 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 improved handling, reduced body roll, and a lowered stance for enhanced sporty aesthetics and driving dynamics.

Designed specifically for the E46 chassis from 1999 to 2005, these springs are suitable for BMW 3 Series models including the 320D and 6-cylinder Touring variants. They serve as direct replacement components to upgrade the vehicle’s suspension for improved cornering and stability, whether on the street or track. Installation is straightforward, compatible with the factory suspension setup, and intended for enthusiasts seeking a lowered ride height without sacrificing ride quality. The kit includes the set of springs, offering a reliable upgrade for daily driving, spirited driving, or performance tuning applications.