as someone who had a scorpio in the past and asked bmw about this here is my input/opinion.
i was going to order the bmw alarm on my 2012 and the dealer looked at me like i was retarded. then laughed at me.
i had the scorpio
i900 or whatever on my sv1000s, it was alright but i didnt really get anything out of it. anytime that it would be useful to arm it was like when i wondered away at a bike night and i couldnt arm the proximity sensor cause there was always people around in some capacity.
my dealer basically said they only had one customer bike reported stolen in the last few years and it was recovered a few hours later and are not aware of any bmws being stolen in our area at all in recent years. i think since bmw implemented that CAN-BUS.
other than walking away with the entire bike i dont think its worth stealing. the keys are laser cut and they said that bmw can hardly get them to run at all when bypassing the CAN-BUS. i think keys can be deactivated on these bikes as well if you lose one.
my dealer seemed to feel that it was near impossible to use it for anything. yea the engine can be lifted and put into another bike...but the other bike needs to have intact electronics they said.
tl;dr other than this bike being smaller, it would be like trying to steal a bmw car basically.
also, didnt BMW do some kind of UV marking to all the key parts on the 2012 cycles?
but back on topic of the alarms, if i were to get one on this bike i would get the
rlink.
i had the
i900 or whatever but it got kinda annoying when the batteries in the remotes got weak and sometimes i wasnt able to disarm it. fun times. (they were some proprietary li-ion batts that got weak pretty quickly)
having had an alarm before i am not going to install an alarm on my 2012
if you get one of dont lose or break your
remote 
they are expensive. i think when i asked about battery replacement they said it was proprietary and the remote needs replaced. i had 2 remotes and both batteries let go really fast (enough to where i would NEED to charge it at least every day)
good luck! you probably cant go wrong with a scorpio and im pretty sure its better than the BMW solution.
2011 BMW s1000rr
alarms: experience? brands?
Crunk1
Ninjette
Toya's Toy
Linear Mode
