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      10-01-2009, 10:16 PM   #3
pruettfan
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Drives: 2017 M2, LBB, DCT, Exec
Join Date: Jul 2009
Location: Chandler, AZ

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I would call Tire Rack, the guys you talk to are the same guys who do the testing. They can help a great deal as they have expertise and they use 328i for their test cars.

I put conventional summer tires on my car and they are XL. I think they help to preserve sharp turn in. You don't have to use XL though because the e90 is not terribly heavy.
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