The question is why?
As mentioned, pulling both filters leaving the top open basically did nothing. For sure if the filters were an issue something would have happened. If there was an issue getting enough air into the box removing the top would make something happen also. Why I mentioned probably blew a hundred bucks on the high flow Cosworth filters.
If it ain't broke....don't fix it. So far, I can't find the broken part (intake wise) except the cars are way rich from the factory.
Did read in the March issue of "Modified Mag' pertaining to modifying the 370Z:
"Just for fun, they brought along their G37 POP Chargers, a bolt-on intake system for the dual HR engines. The intake kit is a direct bolt-on with only minor changes to one of the securing brackets. The necked-down intake also tricks the ECU into seeing less airflow and slightly lean out the OEM mixture to make some more power."
No argument leaning the stock 11.3-11.6 Fuel/air will produce gains. Tuning software and dyno tuning with a wideband 02 sensor will get one dead nuts on the money as to what the car likes to produce the most power.
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