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      12-03-2012, 11:06 PM   #21
ign335i
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Drives: 335i e92
Join Date: Nov 2012
Location: CA

iTrader: (3)

It depends on how much boost you are running and at what RPM. I would say 15psi and below DPs are better, past 15psi it is worth it. I wouldn't bother if you're only running Map 1.