Using your Verus Carbon Composite Rear Spat Kit is easy. First, make sure your car is parked on a flat and stable surface. Then, locate the areas on your Subaru WRX or STI where the spats will be installed. The kit comes with an install hardware kit and uses a simple bolt - on design with rivet - nuts, so you can use basic tools to attach the left and right rear spats. When installing, ensure that the spats are aligned properly with the rear bumper and the Verus rear diffuser for a seamless look. As for maintenance, regularly clean the spats with a mild soap and water solution. Avoid using abrasive cleaners as they may damage the surface of the carbon thermoplastic. Also, be careful when driving in rough conditions to prevent unnecessary impacts. If you do experience an impact, check the spats for any signs of damage and replace them if necessary.