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      06-07-2012, 01:29 PM   #33
Mike@N54Tuning.com
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Drives: 2007 335i, 2015 M3
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Quote:
Originally Posted by themyst View Post
FWIW, the JB4 does CPS. I would also never run the thing without some form of reducing timing but since it is addressed, no such problems.
+1. Plus I would not lump the JB3 in to the same category as the JB4. The JB3 was fine in its day but the two tunes have very little in common. Anyway as has been stated before many thousands of JB4s are in use and they are well loved by their owners.

Mike
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