So, this evening I received my Veepeak OBDCheck BLE dongle; plugged it in and easily connected it via the BimmerLink beta version that Stephan sent.
It WORKS, and it works flawlessly given my short tests - definitely the exhaust burbles upon throttle liftoff are removed. I can now say that I can hear the engine winding down upon deceleration or in between shifts (my M2C is a manual not DCT, and I definitely benefit from not hearing the burbles when shifting gears - when on, they just overpowered every engine and exhaust notes). I couldn't be happier, the engine and exhaust notes are cleaner, everything sounds just unobstructed.
I SIMPLY LOVE IT
-- Fantastic Job Stephan! Everything took barely 24 hrs to implement, from the moment I emailed him with a request to this evening's tests. Now that's TOP NOTCH support!
The attached crappie mobile phone videos (sorry about the quality) are taken in my garage just this evening; didn't want to rip open the throttle as it was past 21:00 hrs and neighbors would have killed me.
https://drive.google.com/drive/folde...20?usp=sharing (
edit: both video clips were taken with Sport+ mode, engine fully warmed up)
Highlights/Cliff Notes:
1. engine + exhaust notes are cleaner, unobstructed by the burbles. Without the burbles, I could hear what was happening under the bonnet and behind me. Before this, I had no idea how much the burbles covered up most of that action (especially in Sport+ mode)
2. Primarily tested in Sport+ mode, ASD and Exhaust Flap ON
3. My '19 M2C is 6 speed, with everything STOCK, even the exhaust.
4. The feature that was implemented in the BimmerLink to turn off burbles is called "Sound Tuning"
5. Change seems to be permanent - the car's ECU seemed to retain whatever changes I made, even after I disconnected the Veepeak and the app (stopped by the grocery store - burbles remained off when drove back home)
6. The car threw NO ERRORS
7. For some test samples, I kept the dongle connected to the car so I can make changes on the fly and test back to back: burbles ON vs. OFF. I can say without a doubt that I very much prefer the car without the burbles. To me they just sounded artificial, masking everything else that the engine and exhaust produce.
The Take-away: the car now sounds like my old E46 330ci which I absolutely loved. The resulting sound is clean, guttural, sort of naturally aspirated. A truly gentleman's sports car noise, and that's how the Bavarians should have implemented from the factory.
Thank you Stephan @BimmerLink/BimmerCode - you ROCK!
Edit: the crappie videos above really do no justice...everything sounds x-times better in person.
Bye-bye burbles!!!!