I have a question. First I need to say I come from the NA world, I have never had hands on a turbo build. That being said when I saw the Airtec pipe I had a concern about the pipe going from 70mm to what ever size that adapter is. To me it looks like a bottle neck that would disrupted air flow entering the turbo, on an NA car with only atmospheric pressure, a neck down like that would kill power. So reading a this thread Ron mentioned being able to tune for that, I don't know squat about tuning, that is what I pay Jason for, oh and asking dumb questions.
Anyone can enlighten me.