Rear Diffuser Fins

These diffuser fins stimulate airflow by redirecting the rear airflow in a linear direction, helping to improve airflow in the undercarriage. They boost the vehicle’s aerodynamics as a result of a reduction in turbulent air at the rear end, which reduce overall lift, reduces drag, and enhance high-speed stability. 

Custom designed to match the curvature of the 02-07 Subaru Impreza WRX STI Mature style & KS style rear diffusers. Can also be fitted onto other rear diffusers. Great for add on / replacement for damaged fins. Made of CNC Plasma-cut lightweight aluminum metal. Matt Black Heat-treated Texture Finish.

-Made in the USA

-Set of 2 diffuser fins

-Mounting hardware not include.

-Usually ships within 2 business days