Has anyone explored this option?

I have low mileage '08 SIDI 3.6L LLT from a CTS that I would love to be able to tune and put in as a stand-alone application. It has the Bosch ECM now. Would it be possible to wire the existing harness into one of the new ECM computers to allow control and tuning of this engine with EFILive?

If not, any ideas on making it a stand alone. I do have the body module if that helps.

Thanks!

Dave