Using this trunk brace is simple. Just install it on your 2002 - 2007 Subaru WRX or 2004 - 2007 Subaru STI sedan as per the included instructions. When installing, make sure all bolts are tightened properly. For regular use, you don't need to do much maintenance. However, it's a good idea to check the brace every few months for any signs of wear or loose parts. If you notice any issues, contact our customer service. Keep the brace clean by wiping it with a dry cloth. Avoid using harsh chemicals on the powder - coated surface as it may damage the finish. Enjoy the improved driving experience this trunk brace provides!