[x7289155]

I installed DINAN on my car yesterday however, i'm not 100% certain my valve is functioning as supposed to.

- When i press the mode button, the valve does not instantly close or open.
- My valve is open at cold start.
- I do however hear a sound difference between comfort and sport when driving and more pops in sport.
- when i pulled my stock exhaust, and installed the valve on the DINAN, the valve was OPEN. This means that when i drove the car a little in comfort and parked it on the ramps to remove the exhaust, the valves were open. This might make sense IF the valve is open on cold starts.

- yesterday when i parked the car, i was driving in comfort mode, i looked under the car and it seemed that the valve is also open. i can tell its open from the shaft angle.

- I can feel the exhaust coming from all 4 pipes which also indicates the valve is open.

So all these things are making me wonder if my valve is working or not.
my question to you, with valve closed, can you feel exhaust coming from the passenger side pipe?

when you press the drive mode button, can you see under the car that the valve shaft angle is changing and closing the valve?

thank you!
here is a link for my install.

[Poochie]

Originally Posted by x7289155

So all these things are making me wonder if my valve is working or not.
my question to you, with valve closed, can you feel exhaust coming from the passenger side pipe?

The valve behavior is different in the LCI vehicles; they're practically open all the time now..

It's not just an M2 thing, all BMWs with valve-controlled exhaust are like this now.

[nioh_lbbm2]

The valve is variable depending on your driving. In comfort I believe it closes around 2-3k rpm while cruising and is otherwise open on idle and start up.

Sport will open the valves but closes in the upper rpm range.

[x7289155]

That's comforting to hear! thank you guys.