Buick Regal Forum : 2011 Buick Regal Forums - View Single Post - Turbo Sound
Thread: Turbo Sound
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post #10 of (permalink) Old 10-13-2011, 10:10 PM
Junior Member
Join Date: Oct 2011
Posts: 5
The turbo is so quiet because of the air filter. My air filter also had another layer of something ontop of the filter its self.
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