For the 2007 Volkswagen GTI, the low-beam headlight uses a D2S bulb. No high-beam bulb fitment is listed in the supplied data, so verify the original bulb before ordering a replacement for that position.
Front turn signal fitment depends on the headlight configuration: vehicles with halogen headlights use 1156A, while vehicles with HID headlights use 64136. Check which headlight type your GTI has before selecting the front signal bulb.
Other notable exterior fitments include 7506 for the reverse light and rear turn signal, 7506R for the brake and tail lights, and 6418 for the license plate light. The center stop light is listed as LED. Parking and front and rear side-marker locations may use either 2825 or 98.
Interior options include 6411 or 6428 for the dome and trunk lights. Compare the existing bulb where multiple options are listed, especially for the courtesy light.