AST Suspension Lowering Springs (50mm/40mm TUV) - 1999-2005 BMW 3 Series 330D Touring

The AST Suspension Lowering Springs for the 1999-2005 BMW 3 Series E46 Touring are high-performance 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, shot peening, phosphate treatment, and powder coating, ensuring longevity and resistance to corrosion. The progressive rate design on most vehicles provides improved handling, stability, and a sportier stance, making them suitable for enthusiasts seeking both performance and aesthetics.

These lowering springs are compatible with BMW 3 Series models from 1999 to 2005, specifically the E46 chassis, including touring variants. They are intended for street and performance driving, offering a direct replacement upgrade that enhances vehicle stance and handling characteristics. Installation is straightforward as bolt-on components, and they are suitable for use with factory or aftermarket suspension setups. The kit includes the springs themselves, designed to work seamlessly with existing suspension components, providing a reliable upgrade for daily driving or spirited driving applications.