This mount replaces existing OEM transmission mount. The transmission mount is made out of high grade billet aluminum material with urethane material for the bushings. With the addition of this mount you will see and feel an improvement with wheel hop being reduced and better traction. This mount will also aid in chassis stability allowing faster lap times with less transmission slop in the drive line. You will notice much more precise shifting in on/off throttle situations like in Road Racing & Autocross..