Using your LP Aventure Cat Back Exhaust is straightforward. First, make sure your Subaru WRX is turned off and cooled down. You can then start the installation process. The v - band flanges make it easy to connect the parts without gaskets. Simply align the parts and tighten the flanges. When it comes to maintenance, it's a good idea to check the flanges regularly to ensure they are tight. You can use a simple tool to do this. Since it's made of 304 stainless steel, it's quite resistant to rust, but you can still clean it with a mild stainless - steel cleaner to keep it looking shiny. If you notice any unusual noises or vibrations, it might be a sign to check the flex section for any damage. Also, remember to use the adapter when connecting to downpipes that use the stock donut gasket to ensure a proper fit.