Application for Mazda 3 BK 2004-2009 for Mazda 3 BL 2009-2013 (Includes Mazdaspeed 3) Specifications Height adjustable: Yes, lowering 25-75mm depending on the vehicle models Damping adjustable: Not available Spring Rate Front: 10 kg/mm (560 lbs/in) Spring Rate Rear: 7 kg/mm (392 lbs/in) Spring length Front: 200 mm Spring length Rear: 194 mm Spring Preload advised: 7-10 mm Camber adjustable: Not available Package included： 2x Front coil-overs 2x Rear coil-overs 2x C spanners Feature 1. Self-design structure and new manufacturing system to give more customers good coil-overs without breaking the bank. 2. Height adjustable---lower your car 25-75mm (depending on vehicle models) to get a performance ride 3. Independent Ride Height and Spring Pre-load Adjustments 4. Twin-Tube System for Comfortable Ride on Streets 5. Coated finish to avoid rust 6. Heavy Duty Steel Lower Mounts 7. Simple install, easy to adjust. Introduction: BFCO coil-overs are designed as entry-level for street use. It