BMW MSV70 ECU Tune (2006-2008 Z4 / E85, E86)Overview Over the years we have advanced our knowledge of the MSV70 to produce calibrations for stock or supercharged vehicles, and everything in between. Our results speak for themselves! Our FAQ MSV70 page provides details the tuning process, what to expect, and information on our Severn Tuning Flasher tool. Off the Shelf (OTS) Standard Tune: This is our OEM plus tune, ideal for stock or near stock naturally aspirated engines. Expect approximately