Back modern springs are somewhat modern, but under more compression modification traits to are more linear. Thus giving a great feeling & feedback for the car in every different track conditions. Marked with TWO dots for effortless identification. Group of 2. Available as a pair, the springs are separately measured, managed, examined and matched to give identical damping traits. Through the selection procedure, each springtime is compressed in many fine increments and also the values recorded, and each spring is matched with another spring of identical characteristics. XRAY goes the excess mile to make sure perfect spring matches, offering your car the predictability and consistency that you need to help you lead the pack.