Yeah, N/A system have to very carefully planned and executed.... you just can't beat physics and I guarantee you that no local machine shop has done the amount and type of testing that companies like Toyota, Honda, Volkswagen do. Any haphazard modification is always much more likely to cause a power loss..... the removal of the helmholtz resonator, for example. As popular as the mod is, physics and actual lab testing have proven repeated that it causes a loss as the resonator smooths the airflow and removes oscillations/turbulence from the incoming charge... but, people are stupid.
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