I want to say the first bikes done were the'08s. One of the links should have had Guhls contact info, they would have the answer your looking for.
Me personaly, I like my PCV and Auto tune, lets me play around without the need to mail the ecu back and forth. For the person who wants to keep the flies in the reflash would be the way to go. Them flies are about as pesky as, well,, flies.