Using this StopTech CryoStop brake rotor is easy. Just replace your old rear rotor with this one following the standard brake replacement procedures for your 2008 - 2014 Subaru WRX. When you're driving, you'll notice better stopping power and less noise right away. As for maintenance, it's a good idea to check the rotor regularly for any signs of wear or damage, especially after long drives or hard braking. Clean the rotor occasionally with a mild brake cleaner to keep it in top condition. Avoid hitting the rotor against hard objects as this could cause cracks. If you notice any abnormal noise or reduced braking performance, it's time to have it inspected.