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Old 06-22-2020, 10:14 AM   #8
Ernest72
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Join Date: Jul 2016
Drives: 16 Silver BRZ, 04 Silver WRX wagon
Location: Rockland county, NY
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Quote:
Originally Posted by Ohio Enthusiast View Post
My Perrin intake came with a cap for the sound pipe that stays in the engine bay (right at the 90* elbow).

I don't see a need to also cap the hole in the firewall, but the 12v accessory cap from the glovebox does fit well there. Or you could take the 12v cap to the big box store and locate a plumbing plug with the same diameter and use that.
That what I have in my car. Works great.
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