Using your RS - R Sports - I Coilover Kit is straightforward. First, make sure your vehicle is parked on a flat surface and the engine is off. You can adjust the ride height and preload according to your needs. For daily driving, we suggest using the recommended adjustment ranges mentioned in the product description. When you're planning to hit the track, you can fine - tune the 36 - way adjustable dampers to get the best performance. As for maintenance, regularly check the coilovers for any signs of damage or leaks. Keep them clean and free from dirt and debris. If you notice any issues, contact the RS - R customer service right away. Remember, the warranty is only valid for 1 year or 12,000 miles from the day of purchase, so take good care of your coilovers.