Thread: N55 JB+
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      05-31-2012, 09:56 AM   #6
Mike@N54Tuning.com
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Quote:
Originally Posted by Army335xi View Post
It was discontinued, due to it being made obsolete by any software updates that BMW would do... Only the JB3 and JB4 are viable tunes for the N55 (from Burger Tuning)
+1

Only worked on the "older" software. The new software BMW introduced nuked pretty much all the gains from it so it was discontinued.

Mike