Mallet makes a nice little Solstice Package too

http://www.mallettcars.com/solstice-conversion.htm

 

Turbocharged LS7 Package

Everything in the Loaded Package PLUS:
900HP Turbocharged LS7 Engine
Dry Sump Oil System
6-speed Tremec Transmission
3.73 Differential
Custom Built Drive Shaft
Custom Built Half Shafts
750HP Rear Wheel