12-02-2024, 12:02 PM | #1 |
New Member
0
Rep 8
Posts |
Contradictory Stock exhaust info
Reading all the posts on G87 M2 exhaust (s) is downright exhausting (pun intended).
My new 2025 M2 has me confused, can't get a handle on real engine noise and how to control it vs ASD which I want to avoid. In my M1 and M2 buttons I have turned off ASD but is there a flap operated exhaust system that activates under certain settings? Do the drive modes activate ASD in some amount? I've trolled the forum and google but cannot find a good explanation of the overall system, is there something out there? all repossess welcomed. |
12-03-2024, 11:28 AM | #2 |
Private
41
Rep 76
Posts |
Full disclosure: I don't own an M2 yet
From what I understand, there is an exhaust flap but it is never fully open (even in sport settings). That's why people here get a valve controller to fully open the exhaust flaps. |
Appreciate
0
|
12-09-2024, 03:22 AM | #3 |
New Member
3
Rep 6
Posts |
Somebody please correct me if I'm wrong.....
The "M Sound" setting is for computer generated car sounds through the car audio. I had no idea until I realized what it was....and therefore once it was off, how quiet the stock exhaust on the car really is. My understanding is that the "Sport Plus" Engine mode does several things; one of which is open the stock exhaust valves. But they're never fully open past 75% i think it is. And I've also heard that those valves adjust with speed as well. It's also possible that the "M Sound" becomes more pronounced when you change engine modes. I know Dahler makes a separate exhaust valve controller kit to force the valves open to 100%. I want more sound so I'm going full stainless Valvetronic exhaust....really hope I like it. |
Appreciate
0
|
Yesterday, 06:01 PM | #4 | |
Major General
3185
Rep 6,612
Posts |
Quote:
Our valve controller can lock the valve from 25-100%.
__________________
|
|
Appreciate
0
|
Today, 11:43 AM | #5 | |
First Lieutenant
648
Rep 396
Posts |
Quote:
__________________
-Nicholas
2024 BMW M2 2022 BMW m240i x-drive (sold) 2018 BMW X5 35d x-drive 2015 VW Golf 1.8t 5-speed (sold) |
|
Appreciate
0
|
Today, 11:50 AM | #6 | |
Joint Chiefs of Staff
27439
Rep 196,865
Posts |
Quote:
If you want full control over the valves, you need a valve controller, it cannot be done just with M1 and M2 to get a real sound, get a valve controller and disable ASD using Bimemrcode or a similar app. the burble sound is a personal preference that you can keep or also disable if you dont like it
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/ Phone number 702-494-9435 |
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|