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      01-09-2013, 05:50 PM   #4
Gugs
Cynical
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Drives: E92 JetBlack
Join Date: Jul 2012
Location: Long island

iTrader: (1)

What "problems" were you having with the jb4? Misfiring?

Most likely they will arise again regardless of which tune you choose.
Best to get the car 110% before spending the money on the turbo/install and being left with problems after.