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      06-17-2012, 05:14 AM   #5
Pharaoh2716
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Drives: 2011 BMW 335i Coupe
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Quote:
Originally Posted by Juiced46 View Post
You can program with the JB3 installed. I would just leave it off however just to make sure there are no issues at all.

You can update firmware on the JB3 as well. But the JB4 is much much better.
don't really see much point in installing it and leaving it off...