Using this exhaust system is easy. First, make sure your vehicle is a Subaru WRX or STI from 2015 to 2021. Installation should be done by a professional mechanic to ensure a proper fit. When driving, enjoy the clean, deep tone at all RPMs. For maintenance, regularly check the connections to make sure they're tight. Since the exhaust is made of stainless steel, it's quite corrosion - resistant, but it's still a good idea to clean it occasionally with a mild soap and water solution. Avoid using harsh chemicals that could damage the finish. Also, keep an eye on the sound level. If it changes significantly, it might be a sign that something needs to be checked. The Advantex packing material is heat - resistant, but extremely high - temperature situations could still affect it over time, so try to avoid extreme driving conditions when possible.