Below is a photo of the Stealth Sky that is going to be racing at Firebird Raceway Tomorrow night. The dealership pulled it out of the shop today for some testing, and while they weren't willing to talk about everything they did to it, I know that it is a base 2.4 liter Sky with a brand new turbocharger, and that it exceeds 300HP. They said that they did about a dozen internal performance enhancements, but tried to keep the exterior all stock (including stock wheels). Cosmetically, the only change they made was to smoke everything that wasn't already black, changed to red line headlights, etc.
I REALLY like the all-black look. The picture doesn't do it justice.
EDIT: I added these two pictures to the top of the thread:
Tomorrow night, they will be racing this on a 1/4 mile track to check the programming and see how it performs under stress. They will be putting it up against a Red Line and a Nitrous Oxide enhanced Solstice.