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      03-15-2008, 06:18 PM   #9
DrGP
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Drives: Sapphire 335i coupe
Join Date: Oct 2006
Location: SE, PA

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All you need to do is look at the valve stems. If they are metal , you have a TPMS system. If they are rubber, you have the non sensor type of system. Note the metal valve stem on my wheel located at the 3:00 position with Non OEM valve stem cap
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