Using your ISR Performance Exhaust Y - Pipe is easy. First, make sure your vehicle is in a safe and stable position. Follow the included installation guide to fit the Y - pipe to your exhaust system. When installing, ensure all connections are tight to prevent exhaust leaks. During use, be aware that this Y - pipe won't fit X Model AWD G37's. For maintenance, regularly check the pipes for any signs of damage or corrosion. You can clean the stainless steel parts with a mild cleaner to keep them looking good and functioning properly. If you notice any issues, it's best to have it checked by a professional.