Using these DBA SP500 front brake pads is straightforward. Just install them according to the standard brake pad replacement process for your 2004 - 2017 Subaru STI. Make sure to bed them in properly. This means driving gently for the first few miles to allow the pads to adjust to the rotors. As for maintenance, regularly check the thickness of the pads. If they're getting thin, it's time to replace them. Also, keep an eye on the braking performance. If you notice any strange noises, vibrations, or a change in the pedal feel, it could be a sign that something's wrong. Store the pads in a dry place when not in use to prevent damage.