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I have the Hartge ECU and Supersprint exhaust ( I think Hartge exhaust is actually a Supersprint product ).
I´m very satisfied. Very nice deep bassy sound. Not too high.
The performance are fantastic. VBOX figures = 0-100km/h 4.7s, 0-200km/h 14.7s! 497 Hp, 720 Nm.
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2016 435d xDrive
Previous:2019 M340i, 2014 335dx,2012 M5,2011 550ix,2008 M3,2007 330xd,2005 M5,2004 545iA,2000M5.
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