Are you on your summer tires still? If you are running the factory Potenzas or any other summer/performance tire, they will almost skip across the pavement in below freezing temps until you get some heat in them. It will be a kind of clunk noise that sounds like what you are describing.
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F.I. / K&N / 180 / Forgestar 
Last edited by BC416; 12-16-2016 at 12:09 PM.
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