AeroflowDynamics 2015 - 2021 Subaru Wrx/Sti Rear Diffuser V2

WRX Rear Diffuser, STI Rear DiffuserModel:  2015-2021 SUBARU WRX/STI REAR DIFFUSER  V2Fitment: 2015-2021 SUBARU WRX/STI - Type: Subaru WRX body kit, STI Body Kit - Made from Aerospace Lightweight ALUMINUM no ABS PLASTIC!!!! - Made in the USA - Comes fully CNC'd and professionally powder coated. - Comes pre-drilled - Fitment Guaranteed - Hardware included - Professional install highly recommended A rear diffuser is an automotive aerodynamic modification typically found mounted on the vehicle’s underbody located at the rear of the car, underneath the rear bumper. As a vehicle is in motion, air flowing in the underbody is typically at high-speed and has low-pressure. The design and purpose of a diffuser are to help reduce drag and to create downforce by facilitating the airflow underneath the vehicle’s underbody. A diffuser is used to increase the air volume along its full length, thus creating a void that must be filled by air. This in turn creates a Venturi effect, meaning the air