[lemetier]

Originally Posted by Ikester19

See links below there's mention of the topic..

https://f87.bimmerpost.com/forums/sh....php?t=1732151


https://www.bmwblog.com/2020/06/21/b...nical-details/

Hmm...click links or review my own UN Working Group Session notes? Hint: the extensions have nothing to do with noise emissions and everything to do with camber and toe. Mandated Low dB tires and sound absorbing well liners address the noise.

tl;dr They are there because...racecar