If you wanted to run like an evo engine, you should've gotten it. It would be costly- buying new ecu, transmission, necessary hoses, custom piping, larger this and that.. etc.
It's not that simple just to 'swap' engines. Cause you'd have to upgrade everything else to support the power you'd be receiving from the 4g63t. In the end (assuming you got the money and did all this), you'd just be acting just like those "little kids". There's a turbo kit made for the RA at
www.roadracemotorsports.com
Some advice for being new, try searching the forums and google first to avoid being scolded like a "little kid" and giving others high blood pressure