what is the best intake out of these:

-Neuspeed P-Flo,

-the EVOMS v-flow

-Apr intake


i dont want to get a cold air intake because of hydro locking so i am looking into the short ram air intakes and wanted to know if anyone had and experience, like the performance gains, gas mileage and sound. i also saw that when these intakes are installed it requires the top cover of the engine to be taken off and i was wondering what can be put there to cover the engine after i get one of these installed.

Also if anyone knows what is the main difference between revo chip tuning and apr chip tuning. i am planning to go stage one and im still looking into these things.

if anyone can help me out here that would be great thanks.