They weren’t hard at all, the directions that came with it were clear and easy to follow. If you know how to use a screw driver, you can install them yourself haha. I’m a mechanic by no means at all, but it is something you need to take your time on. It took me about 3 hours to install them. Most of that was spent on the first flare and ensuring the rubber seal was symmetrical. All it entails really is removing and re-using the screws from the factory “mud flaps” and snapping some clips into place. You will need a t15 torx screw driver, I picked up a kit from Walmart for about $10.