AST Lowering Springs For BMW 3 4CYL. 1998-04/2005, Front 40 , Rear 30

The AST Lowering Springs are engineered specifically for BMW 3 4CYL models from 1998 through April 2005, providing a precise and reliable solution for lowering your vehicle’s center of gravity. Manufactured using advanced Wafios coiling machines, these cold-coiled springs ensure consistent quality and durability. Designed to replace the OEM springs directly, they offer a significant improvement in handling and stability without compromising the comfort you expect from your vehicle.

Constructed from premium materials, the AST springs feature a progressive coil design that carefully balances enhanced performance with ride comfort. This approach allows for a lowered stance—40 mm at the front and 30 mm at the rear—resulting in improved cornering and reduced body roll, while maintaining a smooth driving experience suitable for daily use. The springs are rigorously tested and come with a lifetime warranty against breaking, reflecting the brand’s commitment to quality and reliability.

With compatibility spanning over 2500 vehicle models from 1966 to the present, AST Lowering Springs are a trusted choice for enthusiasts seeking to optimize their vehicle’s dynamics without sacrificing comfort or safety. Installation is straightforward, as these springs are designed to fit seamlessly with the original suspension components, preserving the integrity of your BMW’s suspension system.

Lowering Specifications

• Front lowering: 40 mm
• Rear lowering: 30 mm
• Cold-coiled for enhanced strength and durability
• Progressive spring design for balanced performance and comfort
• Lifetime warranty against breaking

Compatibility

• Specifically designed for BMW 3 4CYL models from 1998 to 04/2005
• Direct OEM spring replacement
• Compatible with original suspension components
• Suitable for a wide range of vehicles—over 2500 models supported

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All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.