This time I have filmed a BMW M4 tuned by German car tuner Bimmer Tuning. It's got the Stage 2 tuning, this includes customized software ECU and downpipes (stock exhaust). Liked the video? Click the 'like' button, comment, and subscribe! Follow me: Subscribe: http://www.YouTube.com/GUMBAL FACEBOOK: http://www.fb.com/GUMBALTV INSTAGRAM: http://www.instagram.com/GUMBALTV TWITTER: http://Twitter.com/GUMBALTV http://www.gumbal.tv