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Old 09-08-2017, 08:35 PM   #4
HCGxKaLiBeR
 
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Drives: 2018 Audi S4/2016 Carmaro 2SS
Join Date: Apr 2016
Location: CT
Posts: 127
Same here. At first I thought someone is knocking my right window or door.

prob exhaust cooling down like everyone said or a fuel tank pressure thing.
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