For the 2015 Subaru Impreza, the high-beam headlight uses a 9005 bulb. Low-beam fitment depends on the headlight system: models with halogen headlights use H11, while models with HID headlights use D2R. Confirm the headlight type before ordering a low-beam replacement.
Fog-light fitment is listed as either H11 LED or H16 LED. The front turn signal uses 7440A, while the rear turn signal uses 7440A as well. Brake and tail-light applications use 7443R, and the rear side marker uses 7443A.
Additional fitments include 921 for the reverse light, a factory LED center stop light, and 168 or 917 for the license plate, parking, and trunk lights. The front side marker uses 168NA. Interior dome and map lights use DE3175.