Sounds like a super charger??
04-01-2005, 12:08 PM
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Join Date: Oct 2004
Location: Davison Michigan
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Sounds like a super charger?? My buddy has a 99 Z28 A4.....for a while now when ever he gives it gas (hard or soft) There is a distinct whinning sounds coming from the rear of the car. It sounds like he has a supercharger back there. I was wondering if he should be worried about this seeing that it has not always been there. All he has done to his car is a Borla cat back and SLP Cold air induction. Any ideas. Thanks alot?? 
