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      01-05-2013, 10:19 PM   #5
Mak135i
First Lieutenant
United_States
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Drives: Z4 3.5i,
Join Date: Apr 2010
Location: Franklin, TN

iTrader: (2)

I had the JB4 in my 135i and it was always upgradeable (I went thru 3 upgrades) and always free.

I expect the same for this. If you go on their web site (and forums) you will get all the information there
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Gone but not forgotten: 2008 BMW135i Vert
Gone but not forgotten: 2011 MB C63 AMG
Gone but not forgotten: 2011 BMW z4 3.5is
Gone: 335i
Added: 2015 Z4 3.5i