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The PERRIN Gurney flap designed for 2015–2021 Subaru WRX/STI sedans equipped with the Premium wing is a small aerodynamic add-on that mounts to the wing's trailing edge to alter airflow over the spoiler. Intended as a simple bolt-on option for the factory Premium wing on sedan models, it provides a tunable trim element for drivers who want to refine rear wing behavior without replacing the entire spoiler.
PERRIN 15-21 Subaru WRX/STI (Sedan ONLY w/ Premium Wing) Gurney Flap
