Using this MBRP Armor Pro exhaust system is easy. First, make sure you have all the necessary tools on hand before starting the installation. Follow the included installation instructions carefully. It's a bolt - on system, so you can install it without complex modifications. When driving your Subaru with this exhaust, enjoy the increased power and the moderate exhaust tone. It won't be too loud but will give your car a sporty feel. For maintenance, regularly check the exhaust for any signs of damage, especially if you drive in areas with snow and salt. You can clean the stainless steel tips with a mild stainless - steel cleaner to keep them looking shiny. If you notice any issues, don't hesitate to contact the manufacturer as the system comes with a lifetime warranty.