Spring rates: Front=515 / Rear=340 (lbs/inch)

The new Variant 3 is state-of-the-art technology for the skilled and experienced driver. The separate and independent compression and rebound damping options allow a truly individual driving set-up. These unique systems with the 3 individually adjustable components, allows for adjustment of the compression of the damper in the low-speed range, while the high speed set-up, so decisive for driving comfort, has been preset by our engineers. 

Independently adjustable damping technology -rebound and compression damping
inox-line stainless steel technology at no extra charge
Individual height adjustment
German TUEV-tested adjustment parameters
High-quality components for long life
Comprehensive documentation for ease of use
Infinitely adjustable rebound damping
14- level adjustable compression damping
Unique, independently functioning damping power adjustment
This system does not include top hats. You can use your stock top hats or use any after market ones that will work with stock struts.