BC Racing BR Series Coilovers 89-05 MAZDA Miata / MX5 - NA8C/NB8C MAZDA Miata MX5- Chassis Code: NA8C/NB8C Mono-tube shock design. Separate full length height adjustable. One year warranty. 30 levels of damping force adjustment, adjust compression/rebound. Front camber plates will be included only on applicable vehicles Custom Kits available (Contact us prior to ordering) One year warranty & rebuilds available.