Tein's flagship coilover, the Flex Z includes all the features you'd want on a suspension kit. 16 level damping adjustment, full ride height control and replacement top mounts make Flex Z the complete package. Highly durable, each Flex Z kit features thorough rust proofing and is made of high strength, highly durable steel for added peace of mind. Key Features: 16-level damping adjustment Full ride-height adjustment Replacement top mounts included Rust-proofed, high-strength steel construction Lowering Specification: Spring rate (Front / Rear): 11 / 11 kgf/mm Standard ride-height drop varies by exact model/year: Tesla Model 3 - (2018-2023): Front -35mm, Rear -40mm Tesla Model 3 3L23B (2021-2022): Front -15mm, Rear -30mm Tesla Model 3 - (2021): Front -30mm, Rear -30mm Tesla Model 3 3L23T (2022-2023): Front -30mm, Rear -25mm Tesla Model Y - (2020): Front -25mm, Rear -30mm Tesla Model Y - (2021): Front -25mm, Rear -40mm Tesla Model Y YL3YPT (2022): Front -20mm, Rear -25mm Fitment Notes: High spring rate spec. Compatible long range trim. US special order only. OE ride height and/or ride height drop might vary by model year and/or trim levels. Compatible performance trim.