Description
The AST Lowering Springs are engineered to enhance your BMW 4 xDRIVE 420i/428i/430i xDRIVE (03/2014-07/2021) by lowering its center of gravity, thereby improving handling and stability without compromising ride comfort. Manufactured using advanced cold-coiling technology on premium Wafios machines, these springs ensure exceptional durability and performance. Designed specifically for the front and rear suspension, with a lowering specification of 40 mm at the front and 35 mm at the rear, they provide a precise fit and optimal balance tailored to your vehicle’s dynamics.
Crafted from high-quality materials, the AST springs offer a progressive spring rate that maintains the original comfort levels expected from OEM components while delivering a sportier driving experience. Their design supports enhanced cornering capabilities and reduces body roll, contributing to a safer and more responsive ride. With compatibility across a wide range of models, these springs are a reliable upgrade for those seeking improved performance without sacrificing everyday usability.
Each set is backed by a lifetime warranty against breaking, reflecting the brand’s commitment to quality and customer satisfaction. Please note that these lowering springs are not suitable for 2WD (Two-Wheel Drive) vehicles, ensuring that you select the correct product for your drivetrain configuration.
Lowering Specifications
- Front: 40 mm
- Rear: 35 mm
Compatibility
- BMW 4 xDRIVE 420i/428i/430i xDRIVE
- Model years: 03/2014 – 07/2021
- Not suitable for 2WD (Two-Wheel Drive) vehicles
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