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08-18-2008, 09:40 AM
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#10
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Major 
Drives: 2008 M3
Join Date: May 2007
Location: Raleigh, NC
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What do you mean what if? G-Power already has a kit for $45,000 that yields something ~150hp. It's in this month's issue of modified luxury and exotics. They have a whole section devoted to M3 mods.
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