That FMIC is the HDI Hybrid FMIC HDI's Website
This is actually a really common FMIC in the UK and Australia and highly recommended. HDI is based out of Australia.
Some pictures of the engine bay of what 04-05 WRX/STi like from the top I found: Engine bay Pictures
However on the Bugeye it routes underneath the car... Can't seem to find any pictures at the moment on that one, I believe that was the old design.