Originally Posted by T Bone
There will be few mods you can do for the new S65 and the biggest limitor is the 12:1 compression ratio.
At 12:1 compression ratio, forced induction is not going to happen for the new M3 no more than the current M5 / M6 (which has the same compression ratio). There is the Osh "800hp" twin turbo M5 for $350,000 but this is just someone with pipe dreams.
Not so. The supercharged Audi I posted about just yesterday in this thread is at an even higher 12.5:1 compresson ratio stock. Sure engine life will likely be sacrificed a bit but I suspect that kit is reliable and high quality. There is no reason a similar thing can't and won't be available for the E92 M3.