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      02-28-2012, 09:54 PM   #2
XDEEDUBBX
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Drives: 535I
Join Date: Mar 2009
Location: Los Angelz

iTrader: (11)

i ran the jb+ and jb4 on my previous e90 and I had no problems but I took the tune off every time I went in for service. Other than that no major problems after 40k miles.
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