Easy. Jack the rear of the car up and remove the rear wheels (1 side at a time) to access where you need to screw them on. The mudflaps should line up to existing screws holes or where you need to drill a hole. The fronts can be done by simply putting the wheels in full lock so you have access to screw them in. If you pop down to your dealer they should be able to print off some instructions for you. it takes about 30-45 minutes if you have two of you doing it. good luck. i did mine a few weeks ago and they look like they have always been there