Hey Bee, just a heads up as I'm sure you've seen them, but I totally recommend checking out the ported manifold and spacer combo that is going on now with Jason (JacFab). The ported manifold is an very nice power bump, and since you already have HP Tuners you can just retune to add fuel. And the manifold spacer is a nice midrange torque bump.
Not promoting for him or anything. Just suggesting. I did the ported manifold and my car pulls away from any other comparable V6. A 350z couldn't even get away from me. And since he's doing a group buy you can get it even cheaper than I did PLUS if you get a manifold spacer he's doing a $25 off ported manifold.