AST Suspension Lowering Springs (40mm/30mm TUV) - 1998-2005 BMW 3 Series 330D Sedan

The AST Suspension Lowering Springs for the 1998-2005 BMW 3 Series (E46) are high-performance suspension components designed to improve handling and aesthetics. Crafted from premium high tensile chromium-silicone wire, these springs are engineered for durability and consistency. Each spring undergoes a meticulous manufacturing process, including cold winding, heat treatment to enhance hardness, and shot peening to reduce internal stresses. The springs are phosphate treated and powder coated, ensuring long-lasting corrosion resistance and a refined finish. Featuring progressive rates on most vehicles, these springs provide a balanced ride quality while lowering the vehicle's stance for improved cornering and visual appeal.

Designed specifically for the BMW E46 3 Series sedans from 1998 to 2005, these springs are a direct replacement upgrade for factory components. They are suitable for street and performance driving, offering enhanced handling dynamics and a lowered ride height of 40mm front and 30mm rear. Installation is bolt-on, fitting seamlessly with the stock suspension setup. The kit includes the lowering springs, with no additional components required. These springs are ideal for enthusiasts seeking a performance-oriented upgrade that maintains ride quality and durability for daily driving or spirited driving on the track.