Using this transmission mount is easy. First, make sure your car is parked safely and the engine is off. Then, carefully remove the old transmission mount and replace it with this ISR Performance one. It's designed to fit your Nissan 350z or Infiniti G35 Z33 perfectly. Remember, ISR orders may take a day to process. If you need it urgently, contact the seller right away. For maintenance, check the mount regularly for any signs of wear or damage. Keep it clean and dry to ensure its long - lasting performance.