The purpose of engine mounts is to hold the engine on the chassis and to mute the vibrations and the sound of reverberations to the rest of the vehicle. Hardrace reinforced engine mounts (made of hardness rubber) provide more strength than OE rubber mounts. You can immediately experience the power feedback of engine when accelerating!
There are 2 types of engine mounts available; Racing/Drift series and Street series. The street series are a good upgrade from OE while the Racing Series give the maximum level of control over engine movement under the most extreme driving conditions