This HT Autos V2 full body kit is designed for 2015 - 2017 Subaru WRX/STI. To install the front lip, first use the factory push clips with the extra ones we provide. Then, drill 5mm holes as the lip is pre - drilled and secure it with the nuts and bolts we supply. For the rear lip, use the factory push clips and the extra ones. Drill 6mm holes and secure it with the plastic clips. When it comes to the sides, stick them to the side skirts with the double - sided tape. Then, use a 6mm drill and the provided push clip to finish the installation. Remember, professional installation is recommended as some modifications might be necessary. To maintain the kit, keep it clean with regular car washes. Avoid harsh chemicals that could damage the Polyurethane material.