AST Adjustable Lowering Spring Kit for BMW G29 Z4 & Toyota A90 Supra | ALS Kit

With this set of Height Adjustable Lowering Springs, you’re not limited to a fixed lowering range. Thanks to the precision-engineered AST height adjuster, you can fine-tune your ride height even after installation, providing ultimate flexibility and control over your setup. The AST Adjustable Lowering Springs lower your vehicle’s centre of gravity while maintaining the comfort and refinement of the factory suspension. Developed as a direct replacement for OEM springs, each kit is tailored specifically for the vehicle application and crafted using premium materials on industry-leading Wafios coiling machines. The progressive spring design achieves the ideal balance between a sportier stance and enhanced driving performance. Proudly made in the Netherlands, Europe.

Key Features

• Adjustable ride height allows post-installation fine-tuning

• Progressive spring rate for comfort and performance balance

• Direct replacement for OEM springs – no compromise on ride quality

• Crafted on advanced Wafios coiling machines from high-grade materials

• Manufactured in the Netherlands to the highest standards

Fitment Notes

• Lowering amount may vary depending on vehicle model and equipment

Compatibility

• BMW Z4 (G29) – All models including sDrive20i, sDrive30i, and M40i

• Toyota Supra (A90) – All models from 2019–Present