BC Racing BR Series Coilovers 89-94 Nissan Silvia 240SX - A31/S13 Nissan Silvia 240SX- Chassis Code: A31/S13 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.