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      12-21-2012, 11:03 AM   #61
kwike92
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Drives: 2009 m3 coupe | 2011 STi
Join Date: Feb 2010
Location: Mission Viejo, Ca

iTrader: (6)

I would say between 8-12k is average. Then 15-20k with a supercharger.
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2009 E92 M3- basic mods, future track car.
2011 Subaru STi daily driver- Stock, for now...