STILLEN 307355 Engine Damper Brace - 03-06 350Z / 03-07 G35 Coupe / 03-06 G35 Sedan Recovers Wasted Energy From Engine Motion Upon Acceleration Acts As A Shock Absorber - Reduces Noise, Vibration, Harshness Mounts Using Existing Holes and Installed Without Removing or Raising the Engine