AST Adjustable Lowering Spring Kit for BMW G29 Z4 & Toyota A90 Supra (Non-EDC) | ALS Kit Brand_GB Styling the JB4 system is not

the JB4 system is not VIN-locked to your vehicle and can quickly be removed and swapped between cars or resold at a later time

OEM ride height and suspension travel

Ghost (RR21)

and thermal stability

AST Adjustable Lowering Spring Kit for BMW G29 Z4 & Toyota A90 Supra (Non-EDC) | ALS Kit Brand_GB Styling the JB4 system is notWith this set of Height Adjustable Lowering Springs, youre 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 full flexibility and control. The AST Adjustable Lowering Springs lower your cars centre of gravity while maintaining the comfort and composure of the factory suspension. Developed as a direct OEM replacement, each kit is purpose