Using these hood struts is a breeze. First, make sure your vehicle is a 2015 - 2021 Subaru WRX or STI. When installing, just do a simple pop - off and pop - on to attach the struts. Remember to install the carbon fiber part towards the top. These struts are not recommended for use with carbon fiber hoods. As for maintenance, keep them clean and check the bolts regularly to ensure they're tight. If you want to change the look, you can choose from different colors available. Enjoy the ease of opening your hood with these struts!