How LOUD my Armytrix BMW M3 is? – Decibel Test (Sub ENG)

Subscribe! http://bit.ly/SubscribeToMarchettino - You guys know how loud my M3 is, but now it's time to have a clear idea at the real noise it makes by using a professional sound level meter! Instagram: https://instagram.com/marchettino Facebook: http://on.fb.me/Marchettino Twitter: http://twitter.com/MarchettinoYT