I was being somewhat facetious... the WRX has a valve at the end of each intake runner that facilitates tumble of the intake mixture in the cylinder, causing more complete burn at partial throttle. It's the same concept being touted by this Turbonator product, but the factory version is effective, while the Turbonator is NOT.

The problem with the Subaru system is that at high throttle positions and/or high rpm, it acts as a minor blockage in the intake tract.

The 2.5RS does not have a TGV, it debuted on the 2002 WRX.