No swap is really necessary, You've got an SR20DE already, you can just bolt on a turbocharger, and get a TMIC or FMIC, its your call. Though if your engine is high mileage, you may want to consider keeping your eyes open for a "slightly new" J-Spec SR20DE from either a BlueBird, or a GT-i ( I think ). Those should pretty much bolt straight, there may be some modifications required, but I'm not a pro at this kind of stuff, but ya know.
