I'd love to know what tuners will be able to safely get out of this engine. Anybody care to speculate?

I know that if I had a two turbos it would only be a matter of time before I started meddling haha. Damn warranties

 

Livernois is runner them at 15lbs of boost and gaining impressive numbers.

(ball park of 50-60 more awhp in the SHO)

 

I test drove one the other day and I have to agree. It is flat out awesome. It would destroy my 2010 5.4. I wish I would have waited 6 mos. instead of buying when I did.