The K&N Advantage air filter for Subaru Impreza with H4 2.0L (2017–2018) is a vehicle-specific replacement intake filter. It fits the listed Impreza years and engine configuration, intended to capture intake contaminants and maintain the correct fitment and installation position for routine filter replacement.
K&N Subaru Impreza H4-2.0L F/I 2017-2018 Advantage Air Filter