With this set of Height Adjustable Lowering Springs, you're not limited to a fixed lowering range. Thanks to the AST height adjuster, you can fine-tune your ride height even after the kit has been installed, giving you ultimate flexibility. The AST Adjustable Lowering springs offer a solution to reduce your vehicle's center of gravity while preserving the comfort you're accustomed to from the original equipment manufacturer (OEM) springs. These springs serve as a direct replacement for your OEM springs and have been developed especially for each vehicle specific. The springs crafted from premium materials using the best Wafios coiling machines. Their progressive design strikes the perfect balance between lowering your ride and enhancing performance. Made in the Netherlands, Europe. Set of AST height adjustable Lowering Springs. With this set of Lowering Springs, you're not limited to a fixed lowering range. Thanks to the AST height adjuster, you can fine-tune your ride height even after the kit has been installed. EDC CAR ONLY What's Included: AST 14-15 BMW 3 Series G20/G21 Adjustable Lowering Springs Vehicle Fitment: 2023 BMW 230i xDrive Base 2019-2023 BMW 330i xDrive Base 2021-2023 BMW 330e xDrive Base