Great looking car Lukas!
Regarding the PSE sound, it appears that the 997.2 has been equipped with a center silencer in addition to the left/right silencers. I don't think the 997.1 had a center silencer. This probably explains the difference in sound.
Cargraphic is selling an exhaust kit for the 997.2 PSE which removes the center silencer. I am pretty keen on getting this one for my 997.2:
http://www.cargraphic.de/index.php?/s,6,7,18,3884,3899/o,article,5850/
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997.2 Carrera S in Carrara White. PASM-Sport Suspension (-20 mm), PSE.
987.1 Boxster S in Arctic Silver with 'Martini Racing' design. H&R Monotube Coil-Over Suspension, H&R Anti-Roll Bars, Sachs Racing Clutch, Single-Mass Flywheel, Recaro Pole Position Seats, PSE.