The E90 M3 has ESS Tuning VT2-625, fully catless Akrapovic Exhaust and a 91/100 octane blend. The F80 M3 comes with catless downpipes, new Akrapovic Exhaust, JB4 Tune, and a 91/100 octane blend.
The ESS VT2-625 supercharger gives the E92 M3 170 extra horses and 336 lb-ft (455 Nm). The JB4 for F80 M3 makes 539whp and 585wtq, so the power output is fairly equal for both.
So which one is faster?