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      01-09-2013, 05:52 PM   #5
Second Lieutenant
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Drives: 07' 335i
Join Date: Mar 2011
Location: Rochester, New York

Posts: 296
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2007 335i  [0.00]
Originally Posted by Gugs View Post
What "problems" were you having with the jb4? Misfiring?

Most likely they will arise again regardless of which tune you choose.
Best to get the car 110% before spending the money on the turbo/install and being left with problems after.
Yes it was misfiring and then also fuel pump but i got that replaced.
E92 07 335i-
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