If you look under the hood of a WRX, the intake path is a little convoluted.  Air enters a large channel near the hood latch that funnels diagonally across the front of the engine compartment.  It then drops down into the fenderwell, passes through a bulbous silencer and then returns via the main intake channel heading towards the manifold.

So, here's the question: is the silencer in the intake path too restrictive for the turbocharged engine?  

You'll often see sites talking about a silencer delete procedure which will definitely make more noise.  What's not at all clear is whether removing any of this piping has any effect on total airflow.

Note: I'm not asking about power, tuning or whether the sound is cool / less so.  The question is whether removing the silencer components will remove a restriction and increase net airflow.


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