2005 Pontiac GTO Intake Manifold and Throttle Body - Breathing Room
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All opened up, you can fit a clenched fist inside. Jeremy wouldn't get into too much detail about what he does inside, but he says his goal is to reduce turbulence and increase interior plenum volume. He uses aggressive carbide bits and an array of cartridge sanding rolls to smooth the many surfaces and sharp angles. View Related Article
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