ApplicationCompatible for Mazda RX-8 2004-2011 All ModelsSpecificationQuantity: 2 Stainless Steel Wrenches2 pieces front + 2 pieces rearSpring rate Front:6kg/mm (336 lbs/in)Spring rate Rear: 10kg/mm (560 lbs/in)Adjustable Damper: 24 Ways Adjustable DamperAdjustable height: YesAdjustable camber plate: NoColor: GoldenWarranty: one year warranty for any manufacturing defectFeature- Adjustable ride height- Adjustable pre-load spring tension- 24 levels of adjustable damper -- This allows you the ability to perfectly dial in your coilovers system. For a nice comfortable driving, set damping to full soft. For more spirited driving, set it to 16 clicks. For occasional track days, set it to full stiff.- Pillow ball top mount -- this design helps combat noise while tuning. It also improves the steering feel and response- Most components are made from 6061 aluminum with T6 for increased hardness -- the advantages include excellent strength, and aluminum helps keep the weight down. - Hi Tensile performance spring - Under 600,000 times continuously test, the spring distortion is less than 0.04%. Plus, the special surface treatment is to improve the durability and performance.- All inserts come with fitted rubber boots to protect the damper and keep clean.- Improve your handling performance without sacrifice comfortable ride.- A fast and affordable way to easily upgrade your car\'s appearance.- Easy installation with right tools.- Ideal for any track, drift and fast road and can also be used for dailyNote- No instruction included; Professional installation alignment suggested.- Please check our store for other auto parts you may be interested in.- Please feel free to contact us for whatever we can help.