Although I agree with everything said above, the simplest way for you to check for yourself would be to compare part # numbers of wiring components, wire harnesses, modules, relays, sensors etc. from one car to the other. if they are the same you will not need to change them, if they are different then you will need to change them. A simple running change for any model year such as a wire connector will also change the part it connects to. Keep in mind that these cars are built by modular assemblies shipped into the plant as whole parts : e.g.. rear axle complete with differential brakes rotors etc. and is bolted to body with 4 bolts. So changing axle is quite simple. other modules are front cradle with struts, engine and trans, front rad support instrument panel with steering column and air bags and ignition skim module, the headliner with wiring attached this would require the removal of the windshield, if the radio, nav, is different this is also programmed into PCM. any and all pkg upgrades when built. every major component is sequenced in and built according to VON. and scheduled at Body in White where it is given a VIN and stamped. This will work but is a lot of work, time, and effort. make sure that you also change the VIN plate once completed and keep both ownerships because if anyone questions the Vin # it will alert the police to a possible stolen car or car parts, The car body is stencils in several places with Vin & Von date stamped etc. Then there is the question of license plates and registration 4 vs 6 cylinders. and insurance purposes. Lots to think about.