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      11-16-2012, 10:46 AM   #11
drm916
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Drives: 335
Join Date: Jul 2012
Location: atlanta

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Quote:
Originally Posted by broham34 View Post
There's no way to tell visually. The only difference is the size of the diameter where the valve goes in. My original valve stem didn't fit through - it was too small. Hope it all works out for you. At this point I still have not purchased my valve (no time cuz of work). I'm using a rubber valve stem running with no TPMS.
My knock offs fit the standard valve stemss.

I looked on ECS website and found these special ones for the OEM 230s.

http://www.ecstuning.com/BMW-E92-335...Stems/ES65845/

Interesting that they are different.