[Ahmed Abdullatif]

Hello everyone, i have installed Mppsk a fee days ago and I experienced the following:

- Feel more power specially on the mid range
- when revving on idle in sport mode is awesome bit I realized only one flap is open even in cruising in sport mode

Is the flaps suppose to open in sport mode or only one flap? Is there a difference when it comes to the flaps when cruising or in idle?

[rjd_F30]

Might want to post this in the B58 section. But to answer your question, the flap will open and close at a number of different times. In sport mode above a certain RPM it will open or in sport+ it might be open all the time, I'm honestly not sure the exact details of when it is open or not. It's close when the engine is not warmed up though, I know that. In other words: don't worry about it. As long as it is opening at some points, it's not broken and it will do it's own thing.

The only difference with it being open or close is sound and a minuscule amount of back pressure.

[bimmer456]

In comfort mode it opens above 4K rpm but is open all the time in sport and sport plus.

[Ahmed Abdullatif]

Originally Posted by rjdnyy224

Might want to post this in the B58 section. But to answer your question, the flap will open and close at a number of different times. In sport mode above a certain RPM it will open or in sport+ it might be open all the time, I'm honestly not sure the exact details of when it is open or not. It's close when the engine is not warmed up though, I know that. In other words: don't worry about it. As long as it is opening at some points, it's not broken and it will do it's own thing.

The only difference with it being open or close is sound and a minuscule amount of back pressure.

It have been installed for 4 days now and i feel the other flap/valve is never opened, what im sure is even when revving in idle in sport + even the engine is warm only kne flap opens.

Is there a breakin period?

[Ahmed Abdullatif]

Originally Posted by bimmer456

In comfort mode it opens above 4K rpm but is open all the time in sport and sport plus.

In sport mode even if idle?

[rjd_F30]

Originally Posted by Ahmed Abdullatif

It have been installed for 4 days now and i feel the other flap/valve is never opened, what im sure is even when revving in idle in sport + even the engine is warm only kne flap opens.

Is there a breakin period?

With the engine warmed up in sport+ even at idle, it should be open. Make sure the connector to the motor that controls the flap is secured properly.

[Ahmed Abdullatif]

Originally Posted by rjdnyy224

With the engine warmed up in sport+ even at idle, it should be open. Make sure the connector to the motor that controls the flap is secured properly.

I went to have it checked but they told the other flap open when needed to and maybe the exhaust is breaking in.

I am not buying this to be honest.

[rjd_F30]

Originally Posted by Ahmed Abdullatif

I went to have it checked but they told the other flap open when needed to and maybe the exhaust is breaking in.

I am not buying this to be honest.

Yah the function of the flap isn't related to the break in period of the exhaust. I would post in the B58 section like I said before though, maybe they will know what's going on.

[Ahmed Abdullatif]

Originally Posted by rjdnyy224

Yah the function of the flap isn't related to the break in period of the exhaust. I would post in the B58 section like I said before though, maybe they will know what's going on.

I will. Thanks so much