I just got my hptuners unit yesterday for my 07 Z.
Mods are cold air intake and kooks headers with no cats.
I have done the basic stuff such as turn off skip shift, adjust the fan settings to my liking and disable the appropriate codes to avoid a MIL as a result of not having cats.
My question is where/what do I begin adjusting for power gains? I'm completely lost, and I haven't found a lot of DIY tuning info for the Z06. Anyone have any suggestions on how I can get started?