View Single Post
      12-19-2019, 01:40 PM   #2
DC X3M40i
Captain
DC X3M40i's Avatar
666
Rep
767
Posts

Drives: 2023 X3 M40i
Join Date: Jul 2014
Location: Long Island ny

iTrader: (0)

Quote:
Originally Posted by sayemthree View Post
can anyone explain what this button does and how it works? it gives me 50 more HP right? (JK) but for real I am not sure and my owners manual is not around and its not on line yet either. google didn't help.
for me it just seems to mute the fake exhaust noise that is piped into the cabin
Appreciate 1
Max Well4813.00