https://www.bmwblog.com/2013/09/27/listen-bmw-m4-exhaust-note/
Listen To the BMW M4 Exhaust Note
Sep 27, 2013 - Road and Track gets upclose and personal with the BMW M4 and captures, in a short clip, the exhaust sound of the new BMW S55 engine.
listen tothe bmwm4 exhaustnote
https://www.bmwblog.com/2015/12/15/bmw-f80-m3-vs-f82-m4-comparison-and-exhaust-tone-update/
Did the 2016 BMW M3 and M4 get an exhaust sound update?
Dec 16, 2015 - A comparison between the exhaust sound of a 2015 BMW M4 Coupe and a 2016 BMW M3 sedan.
2016 bmw m3
https://www.bmwblog.com/2014/10/01/akrapovic-evolution-exhaust-f80-m3-f82-m4-weights-dyno-impressions-video/
Akrapovic Evolution Exhaust for F80 M3 And F82 M4 - Weights, Dyno, Impressions, Video
Aug 4, 2025 - European Auto Source were able to provide installation and collect some data on the new Akrapovic Evolution systems on the F8X BMW M3/M4 platforms