Using this Cobb Charge Pipe Kit is a great way to enhance your Subaru WRX or STI's performance. First, make sure your car is turned off and cooled down before starting the installation. Refer to the included installation guide for step - by - step instructions. When installing, be careful with the aluminum tubing and the billet turbo adapter to avoid any damage. After installation, start your car and check for any leaks. As for maintenance, keep an eye on the powder coat finish. If it gets dirty, you can gently clean it with a mild soap and water solution. Avoid using abrasive cleaners that could scratch the finish. Also, regularly check the connections to make sure they are tight and there are no signs of wear or leakage. If you notice any issues, it's best to have a professional mechanic take a look.