[vrooooom]

Hi guys.

Seems to have a whole lot more burbles now than the stock on Sport +. I would estimate about 3-4 seconds duration now. One time I even heard a "bang" which might be what I have heard describe as "gunshot".

Is that normal?

Not really liking it ...seems to go on for far too long.

I'm now hearing this fast subtle blr-rrrr-rrrr-rrrr sound that I wasn't hearing before when I quickly let go of the throttle during more aggressive driving. I love that. Is that the diverter valve?

I'm playing around w/ the CUSTOM settings now. Any idea if the numbers showing on the Custom is the OTS ...or the Original? It says 1.5s but I'm sure it's way more than that.

If there's a setting for Comfort (no label), Sport (labeled as Sport).... where's for the Sport+? It's what I use for my canyon runs.

[tenkies]

I noticed a longer duration and more aggressive burbles with the OTS map as well. I lowered the aggressiveness to 4 and duration of the burbles to .5 so as keep attention away from authorities.

[CalAcacian]

I noticed this as well. You can change it quite easily in the BM3 system.

With my sport cat, dinan res delete, and dinan exhaust with the valve open, the OTS burbles are way too aggressive in volume, tone, length of time and those gun shots you mentioned. Just getting off the throttle was embarrassing.

Even with the valve closed, it was a lot.

I'm actually running with no burbles currently, but I plan on adding some back in.

[SebsM2]

The brrrrt sound is something I've heard even on stock cars. Not sure exactly what it is, but I love it too. I know the guys over in the 2 series forum have been trying to tune it in but haven't been successful.

To answer your question, what's set as custom is just a pre-set custom setting. It's not the original (OEM) or ots.

Sport and sport+ both follow the settings for sport.

Try out no burbles, you may really like it.

[VisualEcho]

So weird. I adore the pops/bangs/burbles, and absolutely hate the long fart sound on throttle lift. Can't wait to get BM3 after my warranty is out and turn more burbles on and this damn cold start off.

[SeanWRT]

There is the stock burble option in the map config.

[VisualEcho]

Originally Posted by SeanWRT

There is the stock burble option in the map config.

Is there a "no fart" option??

[Dasnub]

Originally Posted by vrooooom

Hi guys.

Seems to have a whole lot more burbles now than the stock on Sport +. I would estimate about 3-4 seconds duration now. One time I even heard a "bang" which might be what I have heard describe as "gunshot".

Is that normal?

Not really liking it ...seems to go on for far too long.

I'm now hearing this fast subtle blr-rrrr-rrrr-rrrr sound that I wasn't hearing before when I quickly let go of the throttle during more aggressive driving. I love that. Is that the diverter valve?

I'm playing around w/ the CUSTOM settings now. Any idea if the numbers showing on the Custom is the OTS ...or the Original? It says 1.5s but I'm sure it's way more than that.

If there's a setting for Comfort (no label), Sport (labeled as Sport).... where's for the Sport+? It's what I use for my canyon runs.

Curious how you like the map overall as I just had my intercooler installed and am going to be flashing Stage 1 93 this week...

[SeanWRT]

Originally Posted by VisualEcho

Is there a "no fart" option??

Yes. For OTS and custom map.

I've disabled burble since early 2018.

[MidnightM2]

Originally Posted by SeanWRT

There is the stock burble option in the map config.

But this isn't the true "stock" configuration surely.

[VisualEcho]

Originally Posted by SeanWRT

Yes. For OTS and custom map.

I've disabled burble since early 2018.

Not the burble, I like the burble. The fart. The long brrraaappp when you let off the throttle in Sport and Sport+. Seems to be exclusively an M2 thing, and I hate it.

You can hear it here at 1:33 & 1:41 & 3:19 & 4:53.

[vrooooom]

Originally Posted by VisualEcho

So weird. I adore the pops/bangs/burbles, and absolutely hate the long fart sound on throttle lift. Can't wait to get BM3 after my warranty is out and turn more burbles on and this damn cold start off.

I'm the opposite. I hate those long burbles and love that fart sound. What's causing that "long fart" sound anyways?

Originally Posted by Dasnub

Curious how you like the map overall as I just had my intercooler installed and am going to be flashing Stage 1 93 this week...

To be honest i don't consider myself to be an expert on this car, I'm a newbie and sometimes i feel I'm not that senstive. But to answer that, I feel that it's not as smooth on low gear but the RPM seems to get up there faster. Seems can be described as "free-er". I guess that's due to the increased power. When on my canyon runs, it's all good and fun. Sometimes I hear the tires chirp on shifts.

[VisualEcho]

Originally Posted by vrooooom

I'm the opposite. I hate those long burbles and love that fart sound. What's causing that "long fart" sound anyways?

Hey brother, it takes all kinds! It's something in the engine management software for sure, as it doesn't happen in comfort, only Sport and Sport+.

[nioh_lbbm2]

I had this same concern and messaged BM3 support directly. Halim gave me a customized map that brought the "stock" burbles back to truly stock. I suggest you guys reach out to him if you want the same.

[SeanWRT]

Originally Posted by VisualEcho

Not the burble, I like the burble. The fart. The long brrraaappp when you let off the throttle in Sport and Sport+. Seems to be exclusively an M2 thing, and I hate it.

You can hear it here at 1:33 & 1:41 & 3:19 & 4:53.

I'm pretty sure the fart you're referring to is not for drama but boost dumping related. In other words, undefeatable.

Originally Posted by MidnightM2

But this isn't the true "stock" configuration surely.

It's interesting you mentioned that. Technically, anything flashed thru BM3 or any other aftermarket tool is not "true stock" but tuner's best attempt to mirror the stock. The same goes for "stock" m2, m2/3/4 cs and m4 gts map under the BM3 OTS category.
It sounds to me that you see the details regarding the burble, care to elaborate to start more discussion?

[Dasnub]

Originally Posted by SeanWRT

I'm pretty sure the fart you're referring to is not for drama but boost dumping related. In other words, undefeatable.


It's interesting you mentioned that. Technically, anything flashed thru BM3 or any other aftermarket tool is not "true stock" but tuner's best attempt to mirror the stock. The same goes for "stock" m2, m2/3/4 cs and m4 gts map under the BM3 OTS category.
It sounds to me that you see the details regarding the burble, care to elaborate to start more discussion?

Isn’t it possible for them to pull a direct copy of the stock tune right off the DME? So many flash companies have (wrongly) talked about “flashing back to stock so the dealer can’t tell.” Surely they wouldn’t make that assertion without it being an exact replica?

[VisualEcho]

Originally Posted by SeanWRT

I'm pretty sure the fart you're referring to is not for drama but boost dumping related. In other words, undefeatable.

Interesting, as it's not as present on any other boosted BMW that I know of. When I get BM3 I'll ask them if it can be tuned out anyway, you never know.

[MidnightM2]

Originally Posted by SeanWRT

I'm pretty sure the fart you're referring to is not for drama but boost dumping related. In other words, undefeatable.

It's interesting you mentioned that. Technically, anything flashed thru BM3 or any other aftermarket tool is not "true stock" but tuner's best attempt to mirror the stock. The same goes for "stock" m2, m2/3/4 cs and m4 gts map under the BM3 OTS category.
It sounds to me that you see the details regarding the burble, care to elaborate to start more discussion?

Hi Sean, burbles are pretty subjective but in my opinion the "oem" setting on bm3 stage 2 91 sounds nothing like burbles on a stock car or even on the custom dyno tune I've had on the car. Perhaps some people like them but my experience is they do not sound natural at all and are quite a bit louder with added gunshots when the exhaust is hot. I have Wagner 300cpi and Remus cat back. My ideal combination would be the OTS tune and truely natural burble which isn't obnoxious

[vrooooom]

When I get my AA hi-flow downpipe which after ~2 months I'm still waiting, I'm going to remove the ASD altogether using BM3 which should turn the burbles off too. I have a good feeling I'd like that more than the ones being pumped by the speakers.

Come on AA, ship my downpipes already. Crazy wait times.

[vrooooom]

Gunshots: are they not the same as a backfire when the car (rich) has too much unburnt fuel and goes into the manifold to explode? Or when there's a leak on our exhaust and the oxygen reacts w/ the unburnt fumes and explodes.

This is supposed to be bad for the engine isn't it?

[3t3p]

My burbles and bangs much more since MHD stage 2. I never even went into the actual burble settings slider so assume it's running stock. However don't know if the stage 2 map has active burble coding in above baseline or it's a result of increased air/fuel/power whatever.

[MidnightM2]

So I have figured out how to have the true oem factory burbles back on the car whilst running stage 2+ MHD map.

I have the luxury of having a bm3 licence aswell.

To get stock factory burbles:
1. Disable active sound in bm3 diagnostics interface.
2. Disable burbles in MHD map configuration

Video here:

https://youtube.com/shorts/HLzyT8Dp8io?feature=share

Don't ask me why this works but I am absolutely chuffed I have the factory stock burbles back!