my dealer said he tested another car on the lot with LSD and had the same sound.

Most owners may not realise this since the engine sound may cover slight whines and hums. 

I will certainly ask for a repair under warranty!.  I just need to prove to the dealer that this is NOT a common problem.


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MY09 C2S Atlas Grey, PDK, LSD, spacers, PSE

MY07 C2S Meteor Grey (Sold)