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      09-06-2012, 02:16 PM   #8
WSYF10M5
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Drives: 997.2 GT3 RS
Join Date: Aug 2012
Location: Toronto

Posts: 40
iTrader: (2)

Didn't notice any difference on mine, the service advisor said nothing in regards to performance written on the 1st service bulletin.

Exact same power from day 1, and I did open her up a dozen time during break in.

I say it's a myth, perhaps this is only referring for E60 M5s.
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