View Single Post
      01-09-2020, 02:25 PM   #5
bimmer456
Major General
2965
Rep
6,000
Posts

Drives: 340i
Join Date: Nov 2016
Location: Pasadena, CA

iTrader: (0)

It is closed in comfort mode. If you put it in sport it will eventually open up once it is warmed up. At least on the F30. Maybe it just needs to be warmed up in comfort for it to open on G20. Its to allow the cats to come up to temp more quickly to meet emissions regs. It will also sound louder and more aggressive.
Appreciate 0