Originally Posted by 7son
I just got one. I am unhappy I lost torque on low rpm. It feels slower, and you can feel it only if you rev it super high. I not too impressed its a BMW not a Honda civic. I just that I think it felt faster stock, which is sad.
Butt dynos are not very reliable with intakes due to the sound changes. But its not possible for the intake to reduce torque, that is governed by boost which is regulated. The power gains do come in at higher RPM where the OEM airbox becomes more restrictive but never makes less power than stock.
Regarding idle issues I've yet to hear of any provided the intake is installed properly.