Using these Noble fog bezels is super easy. First, make sure your car is a 2015 - 2017 Subaru WRX or STI base or premium model as limited models won't work due to wiring issues. Since it's a plug - and - play setup, just connect the bezels to the appropriate connectors without any need for modifications. The sequential turn signal will automatically light up when you use your turn signal, and the LED light strip will give a cool look. As for maintenance, you can clean the gloss - black housing with a mild car cleaning solution and a soft cloth. Don't forget, fog lights are not included, so you'll need to use your existing ones or get some separately.