APR Rear Diffuser (Evo 8/9)

APR Rear Diffuser Diffusers work in conjunction with other aerodynamic components of a car to help produce downforce. Because a car displaces air as it moves forward, the air molecules in the rear of the car get disrupted causing a vacuum of low-pressure air. To help channel the high-speed airflow coming from underneath the car, diffusers redirect the high-speed airflow to transition smoothly transition into the low-pressure vacuum in the rear. This encourages a smoother flowing airflow underneath the car and allows better performance from other aerodynamic components such as aerodynamic wings. **Please note this item does not ship internationally due to its size and weight.**