The GKTECH RB20 solid motor mounts are a direct replacement of the standard item and help reduce motor movement and get power to the ground. Particularly useful in a drift car where the car is off and on the throttle. - CNC machined aluminium - Sold as a PAIR Perfect alternative to Nismo replacement 11220-RS585 NOTE: Will drastically increase NVH (NOISE). Not ideal for a daily driver or non-dedicated race car.