I've fitted one of those BMW headlight protectors as well. Like the way they pull off easily. Glare from the headlight at night otherwise.
Particulary because of the 50w HID conversion I've fitted. Wow.
Other recent mods.
Power Commander and de cat headers. Recommended.
BMW kit that allows you to mount the Vario top box where the rear seat was. Cheap and effective.
All part of the fun of having a GS.