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      03-02-2011, 02:59 PM   #85
Private First Class
Drives: 2008 E90 335i 6MT
Join Date: Dec 2010
Location: San Fernando Valley

Posts: 156
iTrader: (1)

I think your JB4 map 2 is too aggressive!Without seeing your boost curve,my guess is that your piggyback or DME is tapering off your boost too quickly to safeguard your motor!
Is your car otherwise bone stock?
unic66 is offline   Armenia
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