I have a karbonius airbox in my z4m, the airbox is pretty much the same as evolve.
i went with a certain tuner and while the power was amazing, it wasnt driving very smooth at lower rpms. So i decided to go with Evolve for the alpha-n tune and it was night and day difference. I'm not exaggerating, the car drove better than stock, it was just perfect, never stalled once, perfect idle in hot or cold temps. It developed great power, won against every other s54 car from 100-250kmh

and they all had an airbox and alpha-n. One bonus thing is the car consumed less gas after the evolve tune than ever before.
I highly recommend Evolve, also they sent the modified tuning file in less than 24 hours.