I am running an open filter intake with a 3" up-pipe. I removed a section of weather stripping from the front section. The opening lines up with my filter, and would most likely allow more air to the intake.
As i've said before, the air temp is important, but air volume is more important. I may have what you call a "hot air" intake, but in the 1/4 mile it is highly unlikely that there will be a big temp difference; but the fact that my 3" ram-intake is sucking more air will help me. If you drive hard for a while then go do a few 1/4 mile passes right after, then it will affect your performance due to heat soak.
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My Cruiser is slow. I love the law.
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