Average Cost Spent to Mod a E9x M3
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12-21-2012, 11:03 AM
Drives: 2009 m3 coupe | 2011 STi
Join Date: Feb 2010
Location: Mission Viejo, Ca
I would say between 8-12k is average. Then 15-20k with a supercharger.
2009 E92 M3- basic mods, future track car.
2011 Subaru STi daily driver- Stock, for now...
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