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      12-12-2012, 10:05 AM   #32
eric@helix
 
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Drives: 01 M Coupe, 08 135i, '12 328i
Join Date: Jul 2007
Location: Philadelphia

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Quote:
Originally Posted by cstavaru View Post

And if you will get a tune, do yourself a favor and avoid piggybacks. Those are some of the most unpredictible parts you can install in your car.
As a general rule yes, and for any other application besides N54/N55 I would heartily agree, but the quality of work and attention to detail that the two major piggybacks tuners have done makes them an excellent and viable choice.
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