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      11-11-2011, 04:58 AM   #6
Constant.S
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Drives: BMW Z4 E89(N54)
Join Date: Nov 2010
Location: Greece/Canada

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The fueling is efficient for upgraded turbo's for max 19-20psi. Over that and exceeding the 500hp barrier, a second fuel pump with its own management system will be required, but no one in the N54 tuning scene has figure it out yet (Vishnu Tuning say they are working on a solution).
Since there is no reputable option, are you going the custom downpipe route?
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