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Originally Posted by Lowejackson Was the increase after installing a new filter or the culmination of the other modifications. |
Sorry that was confusing. Yes the +8/11 gain was the intake alone . . . very surprising indeed. Our thought was the stock intake is a bottleneck. The other modifications in conjunction with the intake, allowed the engine to ingest more air and yield such high numbers.
In retrospect the 12V VR6 was not necessarily the easiest motor to tune. Quite costly too.
Gris - the PX Viper is a CAI . . . air is drawn from the lower intake vents, i.e. ram air effect.