Not sure you will get the 'R' sound from a 3.2, but sure you can get a good sounding and more importantly, good performing setup.....Having camped close to this car at Classic Lemans, it sounds amazing:
911R rep with 906 motor
Go to 1:45
https://www.youtube.com/watch?v=-bhdzvWbJOg
https://www.youtube.com/watch?v=NnYOrDTVeio
Chris