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      09-08-2012, 04:57 PM   #6
themyst
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Drives: E90 335i LCI
Join Date: Feb 2009
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6AT > 6MT from a roll

Another point to mention is the Protune runs 18 psi down low; at 5000 RPM (in the powerband, the car runs 17.5 psi tapering to 14), the JB4 uses a 3 psi taper from peak, so if it is actually running 16.5 psi, it's tapering to 13.5 or so, so the boost disparity isn't much.

Either way, nice run.
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E90 LCI N54 6AT