AST Lowering Springs For BMW 4 440i (RWD) 07/2021-, Front 25 , Rear 25

The AST Lowering Springs for BMW 4 440i (RWD) 07/2021- are precision-engineered components designed to enhance your vehicle’s driving dynamics by lowering its center of gravity. Manufactured using advanced cold-coiling techniques on state-of-the-art Wafios coiling machines, these springs offer a superior blend of performance and comfort. They are specifically tailored to fit the BMW 4 440i rear-wheel-drive models produced from July 2021 onwards, ensuring an optimal fit and reliable performance.

These lowering springs reduce ride height by 25 mm at both the front and rear, contributing to improved handling stability and a more aggressive stance without compromising the inherent comfort provided by the original equipment manufacturer (OEM) springs. The progressive spring design ensures a smooth transition in suspension response, maintaining ride quality while enhancing cornering capabilities and reducing body roll.

AST’s commitment to quality is evident in the use of premium materials and meticulous manufacturing processes. Each spring undergoes rigorous testing to guarantee durability and performance under various driving conditions. Additionally, the product is backed by a lifetime warranty against breaking, reflecting the brand’s confidence in its engineering standards and providing customers with lasting peace of mind.

It is important to note that these lowering springs are not suitable for four-wheel-drive (4WD) vehicles. Furthermore, vehicles equipped with M-sport or Adaptive M-sport suspension systems will experience approximately 10 mm less lowering compared to standard models. This ensures compatibility with a range of suspension setups while delivering consistent performance improvements.

Lowering Specifications

• Front lowering: 25 mm
• Rear lowering: 25 mm
• Approximately 10 mm less lowering for vehicles with M-sport suspension
• Approximately 10 mm less lowering for vehicles with Adaptive M-sport suspension

Compatibility

• Designed specifically for BMW 4 440i (RWD) models from 07/2021 onwards
• Not suitable for 4WD (four-wheel drive) vehicles
• Compatible with vehicles equipped with standard, M-sport, and Adaptive M-sport suspension systems (with adjusted lowering height)

By choosing the AST Lowering Springs, you invest in a product that balances enhanced vehicle dynamics with everyday comfort, supported by a trusted brand known for precision and reliability in automotive suspension components.

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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.