WHO HAS THE MOST POWERFUL F10 M5 in the U.S.?
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11-29-2012, 04:11 PM
Drives: 2013 M5 & 2009 C63-Tune
Join Date: Apr 2012
Location: Laguna Beach, CA
Stock these cars are capable of 525whp some a little lower some a little higher, which doesn't put it much off the manhart racing 646hp. With tune, stock internals and bolt ons this car is only capable of an additional 30-50whp max...just saying.
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