Yep. They have been moding those cars for a while too... Aftermarket Turbo 2.4s or LS2/LS7 Sky/Solstices are out there too so be warned. I think they had offered a Supercharged LS7 option in aftermarket but it was pretty stupid-fast and not sure if you would run across one on the street. Now they just do a Turboed LS2.
Mallett Cars V8 Sky Conversion