Using your DC Sports Universal Oval Muffler is straightforward. First, make sure your vehicle is turned off and has cooled down. Then, remove the old muffler and replace it with the DC Sports muffler, aligning the 2.5 - inch inlet and outlet properly. When installing, double - check all connections to ensure they are tight. As for maintenance, regularly inspect the muffler for any signs of damage or loose parts. You can clean it with a mild automotive cleaner to keep its high - gloss finish. Avoid using harsh chemicals that could damage the T - 304 material. If you notice any abnormal sounds or reduced performance, it's a good idea to have the muffler checked by a professional.