D2 Coilovers

• 
  Rubber upper mount will avoid the unusual sound and increase the comfort or
  
• pillowball upper mount will increase the handling mentioned for your options.
  
• 36 different dampening adjustments
  
• Use SAE9254 materials for spring to avoid changing shape and 6061 aluminium to
  avoid the rusty when it snows.
  
• To adjust the bottom mount to reach the ride height desired and no need to
  compress the spring.
  
• Use the spring bearing to avoid the unusual sound when turning the steering wheel.
  
• The ride height can be dropped 120mm from OE ride height.
• If there is no application desired, we can customize the coilover for you to meet the

Whats make d2 attrctive is the price for function value. For other quality same price shocks this has 36 damping adjustments and pillowball mount which are only available on mid to hi end coilovers how ever d2 states

• All D2's products are used for racing cars, vehicles operating on non-normal road conditions and also vehicles for demonstration purpose.
• D2's products should not be used in vehicles operating on normal road conditions.

The warning applies the the racing series i believe as you can choose the spring rates if you order D2 coilover because the standard spring rates that they give are very high hence why most people say they're too hard so if you are planning on getting a D2 make a research on a suitable springrate eg. Toyota Yaris if you dont specify the spring rates they'l give 7kg in the fronts which are very hard unless you dont mind secrificing comfort or for track use.

4kgfront 3kgrear are enough for small cars llike the yaris, vios, etc especiall on Brunei roads

Please consult with your local dealer for more info in this.