it would cost about three times what it would cost to mearly sell yours and buy a GSX..

not to mention it would be a supurb pain in the ass, as the ONLY thing shared between the two cars is the basic chassis and some of the front suspension.

you would need an engine, transmission, transfer case, driveshaft, rear differential, rear subframe (with all suspension componants), new underhood and powertrain wiring, a new PCM, and about 200 hours of labor.