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      01-06-2011, 10:27 AM   #30
BT M3
Second Lieutenant
5
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214
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Drives: 2010 M3
Join Date: May 2010
Location: MA

iTrader: (0)

I and others have made 400whp+ with factory pipe modded like this (or just primaries removed)

it makes great power and the factory resonators work. this price is a STEAL.