Using your DC Sports Catback Exhaust is easy. Once it's installed, you're ready to go and enjoy the improved performance and sound. As for maintenance, it's a good idea to regularly check the exhaust system for any signs of damage or loose parts. Keep it clean by washing it with mild soap and water. When driving, avoid hitting curbs or rough terrain that could cause damage. If you notice any unusual noises or a change in performance, have it inspected by a professional. With proper care, your exhaust system will last a long time and keep your Honda Civic Si running great.