Instruction is not inclued! Please check the description or use the year/make/model check finder and replace part numbers to confirm the compatibility before purchasing. Professional installation is recommended. My goal is to make sure you are a happy customer and pleasant shopping with us. Sometimes shiping time may has a little delay, such as Bad wether, Holidays. We stand behind everything that we sell and will do everything possible to assure you are satisfied. Buyers are responsible for the postal cost of returning the items. We must be notified of the intent to return your item within 30 days of receiving the item. 1, Please ask us for return address. We strive to answer all questions and resolve any problems as quickly as possible.