General description Racing Suspension Coilovers designed specifically for Mazda MX-5 MK1 NA models (1989-2005) enhance your vehicle's performance and aesthetics. This complete suspension kit includes 4 shock absorbers and 4 springs, allowing for an adjustable ride height and improved handling. Technical specifications Applications: Mazda MX-5 I (NA) (09/1989-04/1998), Mazda Miata MX-5 NA (1.6L, 1.8L) 1989-1997, Mazda Miata Base Convertible 2D 1999-2005, Mazda Miata LE Convertible 2D 1993, Mazda Miata STO Convertible 2D 1997, Mazda Miata 10th Anniversary Convertible 2D 1999, Mazda Miata LS Convertible 2D 2000-2005 Front and Rear top mount: pillow ball Damping: 24 levels rebound damping adjustable Front spring rate: 7 kg/mm (392 lbs/in) Rear spring rate: 6 kg/mm (336 lbs/in) Adjustable height: lowers from 1" to 3" Shock type: twin tube Spring Preload: 7-10 mm Installation Professional installation is highly recommended. Instructions are included for ease of installation. Usage These