Thread
:
535I exhaust flap ?
View Single Post
06-28-2017, 08:00 AM
#
3
Stück
Major
801
Rep
1,214
Posts
Drives: F15 X5, E46 330i, R56 Mini.S
Join Date: May 2016
Location: Houston, TX
iTrader: (
4
)
Not true, some 535i's do have vacuum actuated exhaust valves.
Cold start sound has little to nothing to do with the position of that valve however, and more to do with whats being done to rapidly heat the catalyst.
Appreciate
0
Quote
Stück
View Public Profile
Find More Posts by Stück