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Old 06-19-2020, 12:41 PM   #4
Ernest72
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Join Date: Jul 2016
Drives: 16 Silver BRZ, 04 Silver WRX wagon
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Pretty sure mine came with a rubber cap, like a vacuum cap. It’s zip tied on the tube coming up from the firewall. You can remove that and plug it from the interior if you want.

Also I kept the resonator attached to the intake, most think it smooths out air or deals with back pressure for MAF.
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