Thread: Chipbox for M5
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      01-15-2013, 03:06 AM   #1
MCM5
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Drives: MCB F10 M5
Join Date: Oct 2012
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Chipbox for M5

Has anyone heard or tried this ?
http://www.swiss-chiptech.com/chiptuning-box.html

For F10 M5, it claims to increase performance to 615 hp & 750Nm.
One good thing (if true) is that you can unplug it & go back to stock setting when going to BMW for service.