AST Suspension Lowering Springs (40mm/30mm TUV) - 1999-2005 BMW 3 Series 4CYL Touring (E46)

The AST Suspension Lowering Springs for the 1999-2005 BMW 3 Series (E46) are high-performance coil springs designed to lower the vehicle's ride height by 40mm front and 30mm rear. Constructed from premium high tensile chromium-silicone wire, these springs are meticulously handpicked by AST engineers for their quality and metal consistency. The manufacturing process includes cold winding, heat treatment to enhance hardness and reduce internal stresses, followed by shot peening, phosphate treatment, and powder coating to ensure durability and longevity. Featuring progressive rates on most vehicles, these springs improve handling, stability, and aesthetics while maintaining ride comfort and ride quality.

Designed specifically for the E46 chassis, these springs are suitable for 1999-2005 BMW 3 Series models with four-cylinder engines and touring body styles. They serve as a direct replacement for stock springs, offering a performance upgrade for street and spirited driving. Installation is straightforward as they are bolt-on components compatible with the original suspension setup. The kit includes the lowering springs only, making them ideal for enthusiasts seeking improved stance and handling without compromising daily drivability. These springs are well-suited for those looking to enhance their vehicle’s appearance and performance on the street or track.