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      03-04-2011, 12:46 PM   #6
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Drives: E46 M3+S62, E92 M3
Join Date: May 2009
Location: Portland, OR

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I would confirm by calling Dinan for yourself but they told me that the racing/middle exhaust tune has their standard warranty.
I believe Dinan still has the best warranties (matches the BMW warranty) in the industry but I would not be surprised if the Dinan - BMW relationship is not as cozy as it was in the that BMW is providing their own performance after the sale products.
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