Subaru WRX-STI Owner's Manual page 488

11-50
Maintenance and service/Replacing bulbs
bulb to be replaced.
2. Stop the engine.
3. Remove the clips from the mud guard.
4. Pull off the mud guard.
! Low beam headlight
1. Disconnect the electrical connector
from the bulb as pushing the tab.
2. Remove the bulb from the headlight
assembly by turning it counterclockwise.
3. Replace the bulb with new one. At this
time, use care not to touch the bulb
surface.
4. To install the bulb to the headlight
assembly, turn it clockwise until it clicks.
5. Reconnect the electrical connector.
6. Reattach the mud guard.