Part #: APR - AB - 820519. Diffusers team up with a car's other aerodynamic parts to generate downforce. As a car moves forward, it pushes air aside, and the air molecules at the rear get disrupted, creating a low - pressure vacuum. This APR carbon fiber diffuser channels the high - speed airflow from under the car. It smoothly redirects this airflow into the low - pressure area at the rear. This results in a smoother airflow under the car and boosts the performance of other aerodynamic components like wings.
Using this APR rear diffuser is simple. Just install it on the rear of your Subaru WRX or STI from 2002 - 2007 according to the included instructions. When installing, make sure all parts are properly aligned and tightened. As for maintenance, regularly clean it with a mild soap and water solution to keep it looking good. Avoid using abrasive cleaners as they may damage the carbon fiber. In harsh weather conditions, such as heavy snow or extreme heat, it's a good idea to check the diffuser for any signs of damage. If you notice any cracks or loose parts, get them fixed right away to ensure it continues to work effectively.
