I know this doesn't apply to us yet, but there is a light at the end of the tunnel... Over on e90post this thread came out today:
http://www.e90post.com/forums/showthread.php?t=481075
1st Tuned E90 N55... It's only a matter of time before the tunes come out for us E70 N55 lovers...
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BMW X5 35i: Boopie Exhaust & Intercooler, K&N Drop in Filter, JB3 (3+ psi)
2013 Dodge Challenger R/T: CAI, Catch Can, Custom Exhaust, Headers, 87MM Throttle Body, Diablo Custom 93 OCT Tune