welcomew,
I see mew found this "other site",
before this all goes into a 3 page Q/A thing again, lots of us are on both sites, so mew will get the exact same answers, to the exact same questions, mew got about the FOB issue...on the COG site.
Just warning, as mew didn't seem to comprehend the answers that have been supplied...
so, no, the '08 ECU/FOB combo won't work for mew, and mew still need to understand all that was posted with regards to getting the salvaged bike running.
to cut to the meat and tater's, mew need a '10-'18 MATCHED ECU AND WORKING FOB.(either passive immobilizer, or actual active FOB)
If anyone has this combo, please let him meow...
nothing short of this will work.
best of luck.