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      10-20-2016, 12:44 AM   #3
Tjalle
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Drives: X4 35i
Join Date: Mar 2014
Location: Sweden

iTrader: (0)

Impressive work. Congrats!

Since I could only hear engine sound - no exhaust sound -I did it the other way around.
I installed M Performance two-way exhaust system with flaps for Sport and Track modes.

Now I have no problem with any noise above my exhaust sound
Appreciate 0