Bentley Mulsanne Exhaust Actuator?

[wilwak]

Hi!

Could anybody help regarding a 2014 Bentley Mulsanne please?

I’ve noticed that the rear exhaust gases come from two secondary hidden exhausts below the main visible pipes.

There seems to be two actuators that would maybe switch the flow to the main visible pipes.

I’ve tried changing the sector dial in the car between Sport, Bentley and Comfort but the gases still exit the hidden lower pipes.

I’d be very greateful if anyone could tell me when the gases should switch to the main pipes?

Many thanks.

[kashsoor]

The gear box into 'S' changes the exhaust tone on my Mulsanne speed