New 2009 2010 BMW Z4 - ZPOST - View Single Post

jannisa · 10-29-2010, 02:48 PM

You have to close the exhaust valve loop or you will lose power. Our N54s with aftermarket exhaust sound louder and kind of droning between 1900 - 2400 rpm, that 's just when the torque kicks in, you 'll get used to it.

10-29-2010, 02:48 PM	#4
jannisa Lieutenant 54 Rep 546 Posts Drives: Z4 Sdrive35i Join Date: Jun 2009 Location: Greece iTrader: (0)	You have to close the exhaust valve loop or you will lose power. Our N54s with aftermarket exhaust sound louder and kind of droning between 1900 - 2400 rpm, that 's just when the torque kicks in, you 'll get used to it.
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