The audiophile package (what I assume you mean by 'individual') ups the speaker count to 10, tweak the equalizer settings and you can get a really good cross-spectrum sound. I think the bass is more powerful. I got mine used with it already installed, so IDK if there's a huge difference between 335 and m3. If you have really high standards, just get aftermarket. OEM speakers from BMW all sound great to me.
E92 ///M3 in Dakar Yellow, M-DCT, iDrive, 220M OEM rims, Active Autowerke Green filter, Turner Motorsport test pipes, BPM stage 2 tune, Stoptech ST-40 F+R in yellow.