Using this FactionFab rear slotted brake rotor is straightforward. Just install it on your Subaru STI from 2005 - 2007 according to your vehicle's standard brake installation process. Remember, since it's a bi - directional design, you don't have to worry about which side it goes on. When driving, you'll notice better braking right away, whether it's your daily commute or a more spirited drive. For maintenance, regularly check the rotor for any signs of excessive wear or damage. The e - coating helps protect it from corrosion, but if you live in an area with harsh road conditions, like lots of salt on the roads in winter, you might want to give it a visual inspection more often. Avoid using abrasive cleaners on the rotor as it could damage the finish. If you have any questions about the rotor's performance or maintenance, feel free to consult a professional mechanic.