Fit :
for Mazda RX-8 2004-2011 All Models
Quantity:
2 piece front + 2 pieces rear  
2 Stainless Steel Wrenches
Spring rate Front  :10kg/mm (560 lbs/in)
Spring rate Rear  : 6kg/mm (336 lbs/in)
Adjustable damper  : 24 Ways Adjustable Damper
Adjustable height      : Yes
Adjustable camber plate      : No
Warranty    : 2 year warranty
Features:
* 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. You can enjoy confortable riding experience in all road conditions.
* 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 daily driving.