When it comes to costs, at the moment, I spent 540 euros for transformation kit purchased from motocrosscenter.com
Is it the same light for the 11 and 12? I have the 11 but don't like it much would be easy if I can just buy the new headlight plastic
The lamp itself fits perfectly. At least the one I got together with the transformation kit.
You will have to also replace the front fender because these lamp mask have different fixings.