AST Suspension Lowering Springs (40mm/30mm 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 components designed to improve handling and aesthetics by reducing ride height. Crafted from premium high tensile chromium-silicone wire, these springs are handpicked for quality and metal consistency. Each spring undergoes a meticulous manufacturing process, including cold winding, heat treatment to enhance hardness and reduce internal stresses, and shot peening for fatigue resistance. The springs are phosphate treated and powder coated to ensure durability and longevity, even beyond the vehicle's lifespan. Featuring progressive rates on most applications, these springs provide a balanced ride quality with improved stability and cornering performance, making them suitable for enthusiasts seeking a sporty upgrade.

Designed specifically for the 1999-2005 BMW E46 3 Series models, including 320D and 6-cylinder Touring variants, these springs are a direct replacement for factory components. They are compatible with vehicles equipped with Electronic Damping Control (EDC), offering a lowered stance of approximately 40mm front and 30mm rear. Installation is straightforward as bolt-on replacements, providing an effective upgrade for street performance and visual enhancement. The kit includes the lowering springs themselves, with no additional components required. Ideal for daily driving, spirited street use, or track days, these springs deliver improved handling dynamics while maintaining ride comfort and durability.