I have the G15 and the Keyboard Profiler does not reconize LFS when it does a automatic search but you can manually make a profile for it and just assign key strokes or macros to the 18 hot keys on the left side of the keyboard. It works very well in the game. I have tyre temps, damage, pit speed limit, and a few other in the bottom six keys G13 - G18 and they work easily.

It cool to see the CPU/RAM usage on the LCD and it even does dual CPU processors with a split line.
I'm still learning it's capabilities.
