and why would you do this???? It's illogical twin charging an engine. which ever one makes the most boost is going to determine the power level....and there is a good chance the turbo is boosting higher which means it could cavitate the s/c or the s/c is depresurizing the turbo's boost....I call BULL**** on this one... i dont understand why everyone would want to do this. Like the cobalt owners for one....http://hahnracecraft.com/ProjectVehicles/New_Folder/Cobalt/CobaltSS.htmAmandyke said:It'll easily handle 700+ hp. I've got one that's turbo AND supercharged. It's a bit non-standard. But it makes a great noise! Stock everything btw!