Exhaust pipe baffles
04-25-2020, 09:42 PM
#1
Junior Member
Thread Starter
Exhaust pipe baffles
On my newly acquired 2015 S550 I notice when looking in the dual exhaust pipes on each side that one of the pipes has a baffle that seems to be controlled by a vacuum line. What causes these baffles to open, is it actuated only under sport mode or all the time over certain RPM's. I know that my Z4 has a vacuum baffle on the right exhaust that stays closed when cold starting then opens after a few minutes. If you remove the hose from the pipe and plug the line, the baffle stays open all the time...deeper cold start sound. So, once again, what is the purpose of the Merc baffles, do you guys mod them to stay open and then, how.
04-26-2020, 06:41 AM
#2
Junior Member
Thread Starter
Common Guys, nobody has an idea about these vacuum operated baffles ?
