Subaru Impreza WRX/STI Carbon Fiber Rear Diffuser 2002-2007 JC Their primary function is to

Their primary function is to reduce lift at high speeds by directing airflow along the sides of the car and preventing air from rolling underneath

Note: Mounting bases sit at edges of trunk lid

durable carbon fiber composites

Upgrade your BMW M2 or M2 Competition with our carbon fibre rear diffuser

Upgrade your BMW 1 SERIES with our Carbon Fibre Front Splitter

Subaru Impreza WRX/STI Carbon Fiber Rear Diffuser 2002-2007 JC Their primary function is toDiffusers 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 air flow coming from underneath the car, diffusers redirects the high speed air flow to transition smoothly transition into the low pressure vacuum in the rear. This encourages a