finally got an answer on gamefaqs. this will work on either the autobot or decepticon version (also heres ramjet for those who missed it) silverbolt - 10141 ramjet - 99871
Thanks for the Ramjet code! I already have the Silverbolt code; in fact, I have 2 of them since I bought both Autobots and Decepticons WFC games from TRU.