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      01-02-2013, 11:48 AM   #10
Drives: '08 335i - BMS DCI, JB4
Join Date: Oct 2012
Location: Dallas, Ga

Posts: 98
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Originally Posted by
Originally Posted by Madill21 View Post
I know the boards are different and ill def be looking into the upgrade when I have a little more cash flow. Christmas always hurts!
Is the JB4 more likely to throw codes...? I know it's more advanced and everything. The car is my daily driver and I don't track it. (Yet) I always run 93 octane. Was just planning on running JB3 map 3-4.
The JB3 is obsolete now and no longer compatible with newer software versions from BMW. So it may throw check engine lights, not run right, etc. I would throw it under the bed until you can afford the JB4 upgrade.

I drive an '08 think it'll be incompatible. Friend I'm buying it from said it never threw a code for him running it on map 4.

2008 335i - JB4 / BMS DCI / Premium Package / Sport Package / 6AT
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