It's their kit for the 1190 that I have sat in the garage waiting to be installed
I got them from Zen Overland in the UK but they don't look to stock the GS version online, they may be able to get one for you though as they are obviously bringing stuff in from Cyclops. From what I can gather you get what you pay for with LEDs, though the price of these made me wince.
I had put HIDs in the Kwak and the light they gave out was excellent. It was a bit of a fiddley install though the ballasts were slimline so they weren't too bad to find a home for.
The KTM tank is 23 litres and the dash starts to panic flash at 190-200 miles, despite the 'clever' computer telling you that it has an over-300 mile range when fully fuelled
I'd have liked more range but there's only 1 real bavarian option for that and I still don't fancy a GSA.
There's a tidy aux tank available but it only adds 6 litres, so I will be looking into an untidy option at some point