DROPZONE springs are true performance lowering springs, not just a shorter stock spring. They are designed the way performance springs should be, with the correct spring rate and ride height for each specific application. Lowering vehicles from 2.0" - 2.5", according to vehicle specifications, providing race car looks with handling to match. All our kits are made with the same quality material and design standards used with our lowering sport springs kits. Also designed to be used with aftermarket sport shock absorbers. Minor modifications or camber kits may be required. All our springs carry an ISO 9001 standardization and are TUV approved.