Hi M3 owners !
You will be proud to own this car and I am now even the prodest of you, because a bought the new Sportwagen-Herrmann Race exhaust with a valve for switching the sound on and off !!! 109 db race sound
Please have look. What do you think ?
, I just uploaded the videos!
and search for "M3 Herrmann Klappenauspuff"
Have fun !
Tim from Germany