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I also have both the ppk and jb4. I mainly use the ppk and switch maps back and forth.. For city driving the ppk is great.. Lots of torque and great on gas.. On an open road the jb4 is amazing..I'm sure you'll be happy with either..
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2011 BSM E90 335 xdrive, msport,performance package,nav,premium,cold weather,ets cp,bms intake,custom exhaust,jb4 stage 2
R.I.P. 09 BSM E90 335 xdrive =*(
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