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N55Nick · 12-27-2013, 08:45 PM

The jb4 will not stack on top of the ppk since the max boost will be the same. In other words, stock + jb4 = the same as ppk + jb4. If you want more power, get jb4 + downpipe

12-27-2013, 08:45 PM	#3
N55Nick Private First Class 82 Rep 181 Posts Drives: 435i xDrive Join Date: Nov 2013 Location: Canada iTrader: (0)	The jb4 will not stack on top of the ppk since the max boost will be the same. In other words, stock + jb4 = the same as ppk + jb4. If you want more power, get jb4 + downpipe
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