What about the other items that are listed in the auction - Fuel rails, injectors, intercooler, gaskets, and misc fittings and sensors? Is some of that stuff included in the main supercharger kit?
I have yet to verify that this thing will fit under the hood. The few threads that I did find with people asking questions about the LSA always end up with "This is probably not going to fit".
The Maggie may be a simpler solution but if I'm going to do this my preference would be to stick with GM parts.