Using this StopTech CyroStop brake rotor is easy. First, make sure your vehicle is the 2002 - 2008 Subaru WRX as specified. When installing, follow the standard procedures for brake rotor replacement. If you're not sure, it's best to have a professional mechanic handle the installation. During use, you'll notice better braking right away. The cryogenic treatment means it can handle a lot of stress, so you don't have to worry too much about normal wear and tear. But for maintenance, regularly check the rotor for any signs of excessive wear or damage. If you notice any cracks or uneven surfaces, it's time to replace it. Also, keep the rotor clean to prevent dirt and debris from causing premature wear. This will help you get the most out of your brake rotor and ensure your safety on the road.