WHO HAS THE MOST POWERFUL F10 M5 in the U.S.?
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11-30-2012, 10:12 PM
Drives: 2013 M5 & 2009 C63-Tune
Join Date: Apr 2012
Location: Laguna Beach, CA
I think joe at trinity has some upcoming installs of rpi exhaust systems ...you guys might want to ping him to coordinate.
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