[blau911]

Nick, others will disagree, but I am of the opinion that as long as the car uses the same matching number engine, the same displacement, the same fuel delivery system and same engine wiring, all internal specs of the engine can be changed with no negative effect on value. In fact, rebuilding a 2.4T MFI motor to higher compression S or RS spec is a plus in value - as long as it was done by a reputable shop with paperwork to confirm what was done. A nice running 2.4T is a good engine, but a 2.4E, 2.4S or 2.7RS is even better....