Have you ever thought about adding spoilers to your certified Ford? Chances are that you’ve seen these contraptions on other cars traveling down the road. And you’ve definitely seen these if you’ve ever watched a NASCAR race. But you might not know exactly what they do (besides make a car look uber cool).

Spoilers typically help make cars go faster. They do this in a couple of ways. First, they break through the air resistance that vehicles encounter at higher speeds. With dissipated resistance, your car can break through the air with less effort. This also increases the vehicle’s fuel efficiency because it takes less effort to move. You probably never noticed, but there are also spoilers underneath the front bumpers of some vehicles to break through the air resistance.

Spoilers also give the driver more control over the car. By adding weight to the back of the car, they keep the rear wheels on the ground at higher speeds. This gives the car better traction and performance when making fast turns.

You can find specialty shops that will install spoilers on your Ford. Many sports cars already come with these devices, too. But now that you know exactly what they do and what they are for, you can decide if you want to install an aftermarket spoiler or not.