Coilover Spring Kit compatible for Mazda 3 BK3 SP23 2004-2009 10-13 BL Struts Shock

Application Compatible for Mazda 3 BK 2004-2009 Compatible for Mazda 3 BL 2009-2013 （ Includes Mazdaspeed 3） Specification Product included: Complete coilovers 2 front and 2 rear as shown in the picture Spring rate Front: 10 kg/mm (560 lbs/in) Spring rate Rear: 7 kg/mm (392 lbs/in) Spring Preload: 7-10 mm Shock type：Twin tube We also have other colors Daily Driving Scene To The Sunday Track Damper: Non adjustable Damper Adjustable height: Yes Adjustable camber plate: No Color: Blue Warranty: one year warranty for any manufacturing defect Feature - Able to lower ride height by 1''-3''; allows user to have a more aggressive stance. - Pillow ball top mount --- this design helps combat noise while tuning. It also improves the steering feel and response.  - The user can enjoy a comfortable riding experience in all road conditions. - Twin-Tube Shock design is used for low internal frictional resistance in order to increase efficiency and keep shock temps low. - Height adjustment