Using this product is a great way to enhance your Subaru WRX's performance. First, make sure to check if your vehicle model (2002 - 2005 or 2006 - 2007) needs the specified oil pan or oil cooler as noted. When installing, follow the instructions carefully with the included hardware kits. The exhaust wrap can be used to reduce heat. For maintenance, regularly check the connections of the exhaust manifold and up - pipe to ensure they are tight and there is no air leakage. If you notice any signs of wear or damage, replace the relevant parts promptly. Keep the smooth inner surface of the exhaust manifolds clean to maintain good flow.