Originally Posted by KennyPowers
In what way are they more focused on performance?
They are lower than many others which should compromise performance by severely over extending the range of the stock dampers.
What am I missing?
Originally Posted by Malekreza11
Quite the opposite actually. RD Sport is better for the looks over the actual handling aspects.
RDSport co-designs their springs with the Pirelli Race Team. They also do product development for all of their suspension components (sway bars, struts, etc.) at the same time to maximize performance of each individual piece. While some spring manufacturers focus only on drop and minimal increase in performance, RD gives you the option to make the springs step one, and then continually improve the performance of your vehicle by adding their additional products. Here is a review from a 2009 issue of European Car Magazine sums up their focus on performance.