Features a design that connects from the front spoiler to the rear, and when installed on the lower part of the blacked-out rear bumper, it further tightens the underbody appearance of the new WRX S4.

The diffuser, inspired by motorsports, helps manage airflow under the rear floor while also contributing to vehicle responsiveness. Finished in Crystal Black Silica paint.

* The listed price is the manufacturer's suggested retail price excluding installation labor.

* Cannot be installed together with the genuine SUBARU accessory rear bumper skirt.

* Reduces ground clearance at the installation area by approximately 25mm maximum.

* Extends approximately 25mm rearward from the vehicle's rear end.

* When installed together with the colored number plate base (front), modification registration is required due to overall vehicle length regulations.

* Standard equipment on the special edition model 'S210'.