View Single Post
      02-22-2019, 08:53 AM   #14
chmura
Colonel
chmura's Avatar
1314
Rep
2,228
Posts

Drives: 2019 M2 Competition
Join Date: Aug 2009
Location: Orange County, California

iTrader: (1)

Quote:
Originally Posted by urke85 View Post
While i am waiting for my remus exhaust, i try 2 options with valves.
I opened valves with bimmerlink app, and still m2c electronics controls the valves when you go higher speed(it is not permenent open), then i try to open the valves and took the cables from valves down and wow, so much better sound!
At cold start i would say 20-25% better.
On drive a little less but i would say about 15-20% better.
Did you open the valves and unplug the connectors?