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      03-17-2013, 08:00 PM   #3
bobblehead
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Drives: warp speed
Join Date: Aug 2009
Location: Toronto, On

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It's possible your new tires are not broken in yet.

On the stock M5, the PSS generally needs at least 500 miles to break in, at least that's what I noticed on mine. Esp. on wet roads (when they are new), not much grip on them.
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