What Is a Diffuser in F1? Aerodynamics Explained

A diffuser is an aerodynamic component located at the rear underside of a Formula 1 car. It manages the flow of air passing beneath the car, accelerating it as it exits. This creates a low-pressure zone under the car, which sucks the car towards the track and generates significant downforce without producing much drag. The diffuser is one of the most performance-critical parts of an F1 car and is the subject of intense development by every team.

Example: The team have introduced a redesigned diffuser this weekend which should improve their rear downforce significantly.