Using these DTC Carbon Fiber Emblem Overlays is easy. First, pick the color you like. Then, take the overlay and carefully place it over your existing emblems on the front and rear of your 2015 - 2021 Subaru WRX or STI. Make sure it's properly aligned. When it comes to maintenance, just use a soft cloth to wipe them clean. Avoid using harsh chemicals as they might damage the carbon fiber finish. Also, be gentle when installing to prevent any scratches on the overlays or your car's emblems.