BMW M5 and M6 Tuned by Hartge to 642 HP
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01-25-2013, 05:16 PM
Drives: F10 523i N53B30 - AC Schnitzer
Join Date: Mar 2012
Location: Norway, Scandinavia
Originally Posted by
Yaaahhh! Let's make some power increase claims and provide no evidence to back it up!
Where are the dyno's, and comparo vids?
This shows the difference in acceleration before/after the tune.
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