Sounds like a disaster. If they had no permission to flash your ECU, they should have never touched it.
And you made a mistake by allowing them to reflash it after you got it back from the dealer.
I don't understand why everything was ripped apart on an N54 car which would have the MSD80 or MSD81 - currently flash programmable through OBDII for awhile now.
Ever since I heard about the Gintani Ferrari story, I've known to stay far far away
I don't want to be involved, but I suggest taking a look at these threads:
http://www.m3post.com/forums/showthread.php?t=506528
http://www.m5board.com/vbulletin/e90...r-gintani.html (particularly page 2 and up)
Good luck with getting everything resolved
Mike Benvo
(Formerly Mike@Powerchip)