Ok first of all grow the **** up. I never said that you said the stage 3 was a complete kit im just stating the fact. Since we ARE talking about turbo kits here. You still think that you can run a car w/ the stage3. You gotta add on a lot to that 4500 price tag to get the car running with that kit which will be a lot more than 5 grand. And where do you get this twice the power over a drag kit. The drag kit and RH stage 2 kits are more than you'll ever need to get power from. Upgrading the wastegate and downpipe would be one of the few things I would change from both kits. Maybe if you fully tune and upgrade everything you could pull off twice the power over the greddy non-intercooled kit. You obviously know nothing about turbos and tuning. You still havent even stated why you "think" the stage 3 is so great.
Anyhow....I agree with newgsr....custom all the way for a full out race setup. Kits are nice so you dont have to make those million trips to the local hardware store for misc. parts.