Hyper went to the X7 design on their new cars and we opted to use them on the left rear of the car to allow additional droop. We retained the X6 plate on the right to allow more RR compression. This was to prevent the shock form bottoming out. Coil binding on the RR is illegal and using the shock as a stop will damage the shock. It is highly recommended that you do not use an extension of any kind on the right rear. You do not want the shock to bottom out.