Includes KONI externally rebound adjustable sport inserts for E36 M3 and KONI standard adjustable rear shocks with OE Sport springs. OE Sport springs are approximately 15-20% stiffer than original. They lower the car approximately 0.75" in the front and 0.3" in the rear. This kit offers enhanced control over stock suspension without a harsh ride. Add TCKR rear shock mounts for improved handling over stock mounts. (This kit does not include rear shock mounts)