No issues with fuel & air mix from what I've read. . .
MAF sensor scaling is ok with the Twintake too (EVOMS is closest to OEM MAF though out of all the intakes).
If you run a turbo back exhaust and stage 2 Revo or Superchips (maybe even APR Maps?) with an intake you can find your fuel pump can't supply enough fuel, sometimes causing fuel cuts.
Stick with stage 1 and you will be fine