A Breakdown of What a Spoiler Does for Your Vehicle - Westech

To lower wind resistance (or drag), spoilers are designed to alter the airflow above, around, and below cars. By "spoiling" airflow, they lessen the detrimental consequences of that airflow. This, in turn, increases downforce and increases traction at high speeds. During the 1960s, spoilers began to appear on race cars and other high-performance vehicles to improve their aerodynamics (the way air flows around a car). Automobile manufacturers were later compelled to modify the aerodynamics of all their models to achieve better fuel efficiency ratings under government rules. At highway speeds, a car with less wind resistance consumes less gasoline.

How Spoilers Work

Quick Tech: When And Why You Should Add A Spoiler To Your Race Car

What Does a Spoiler on a Car do? - CARFAX

What are spoilers used for on a plane, and when are they used? - Quora

Do Car Spoilers Actually Work?! (Spoilers Explained)

For Dodge Durango Car Front Bumper Lip Spoiler Splitter Body Kit Glossy Black

Westech Performance Group - THE Dyno Center

How Spoilers Work

What Do Car Spoilers Really Do? Question Of The Day

How Spoilers Work

Westech Performance Group

How Do Car Spoilers Work? – Feral Industries

What is a spoiler for on a race car? - Quora