Our numbers will never compare with the RWD N55 cars however this is what I got last summer:
2011 e92 335xi 6MT
JB4 Stage 2 Map 2, BMS Intake, ER CP, AR DP and 94 octane gas
305 awhp and 407 awtq (Run 3 on image)
For reference I did Run 1 with JB4 set at Map 0 (stock) just to see the difference between maps.