Using your Seibon dry carbon fiber replacement roof is easy. Just install it on your 2015 - 2021 Subaru WRX or STI following the standard installation process. When it comes to handling, be gentle as carbon fiber is strong but can be damaged by sharp impacts. For maintenance, keep it clean with a mild car cleaner. Since it doesn't have UV protection, if you're not going to paint or wrap it, apply an automotive - grade clear coat with UV inhibitors. This will protect it from sun damage. When your roof is shipped, it will come via Pilot Freight Services. Make sure to inspect the package right away. If there's any damage during transit, let us know right away. And remember, most of these roofs are made to order, so be patient during the 8 - 12 - week manufacturing time.