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: 24 levels of rebound damping force Spring rate Front: 10 kg/mm (560 lbs/in) Spring rate Rear: 7 kg/mm (392 lbs/in) Front spring inner diameter: 70.5 mm Rear spring inner diameter: 65-87 mm Spring length Front: 200 mm Spring length Rear: 194 mm Front top mount: Pillow ball Rear top mount: Standard rubber Camber adjustable: Not available Spring Preload advised: 7-10 mm Shoc Type: Twin Tube Package included： 2x Front coil-overs 2x Rear coil-overs 2x C spanners Feature 1. Lowered height adjustment from 25-75mm (depends on vehicle models) which allows a lower center of gravity and also adds a more aggressive stance 2.24 levels of adjustable damper -- This allows you the ability to perfectly dial in your coil-overs system. For nice comfortable driving, set damping to full soft. For more spirited