[nlrbmw]

Originally Posted by Ashsarhaz93

I have just lifted this from the UK configurator & we are only showing 360bhp for the UK M40i. Am I missing something glaringly obvious?

OPF filter!

[suby01]

A new OTS version was released by BM3 over the weekend.

This did update the sport displays to display Im assuming which are accurate #s of 560 HP and TQ at the crank?

And the drive ability is also improved which I didn't think it needed it but it is a lot smoother now when gently accelerating.

I still get the same check engine when flashing. So I have to clear the codes 2 times like already mentioned.

Once I get bored of the OTS maps I will be looking for a custom dyno tune, to squeeze and extra 5whp out of it. But that will have to come with new wheels and tires that can actually grip.

[NYCX5M50i]

anyone have any dyno graphs for before and after tune?

[suby01]

Originally Posted by NYCX3M40

anyone have any dyno graphs for before and after tune?

Nope. Ive been wanting to see even a stock 2020 M40i whp #s. But apparently it doesn't exist.

[Alias1431]

Originally Posted by suby01

And the drive ability is also improved which I didn't think it needed it but it is a lot smoother now when gently accelerating.

Can you elaborate on that? Mine can be a bit lurchy at low speeds, especially when the engine is cold and leaving my hilly neighborhood. Half the reason I'm researching tunes is to improve overall drive "smoothness."

[suby01]

Originally Posted by Alias1431

Can you elaborate on that? Mine can be a bit lurchy at low speeds, especially when the engine is cold and leaving my hilly neighborhood. Half the reason I'm researching tunes is to improve overall drive "smoothness."

My 2020 stock had no issue with any sensitive pedal or jerky acceleration. But with the first OTS BM3 tune which was an older map the car was considerably faster but not as smooth. I equated this to the additional xx hp #'s. But this last OTS map revision update brings it back to smooth acceleration. As listed in the latest BM3 map update.

This is going to be subjective to 5 people driving the car and you will get 4 different opinions but I dont think this tune improved the stock feel at all. All it did was correct the last map revision which made stock feel, feel "worse".

[suby01]

Originally Posted by freshxdough

Clips of burble aggression with video when you get a chance. Honestly the only reason I want to do BM3. Boost in power is great but really looking to get some crazy pops going and turn off cold start too

Here is the drive by's and start up roar enabled. I will also upload the inside driving shortly.

Burble aggressiveness is set to max 12. Duration is 3 sec. It was a super hot day and the Cat Efficiency Overrun protection kept kicking in, limiting the crazy burbles. But you get the idea. 3 min video below.

Car is freaking loud if you have the burbles enabled from OEM. But I personally cant tell much difference when going from aggressiveness 8 to 12 which is crazy max.

I have the wifi wireless agent and a iPhone hotspot so now I can change my maps on the fly anywhere. I have the same Stage 2 93 maps saved with just different LOUDness levels. Flaps open all the time etc. And quiet for no start up roar, no cat heating, and oem flaps. It is so convenient.

[Alias1431]

Originally Posted by suby01

And quiet for no start up roar, no cat heating, and oem flaps. It is so convenient.

Does quiet start-up have any longevity detriment? I like the noise when out and about, but at home it just makes me feel like a bad neighbor. I wish you could program on/off based on the time, like I believe the Mustang can.

[suby01]

Originally Posted by Alias1431

Does quiet start-up have any longevity detriment? I like the noise when out and about, but at home it just makes me feel like a bad neighbor. I wish you could program on/off based on the time, like I believe the Mustang can.

Based on my understanding no, and Im not a tech or a tuner. The BM3 tune lets you turn on start up roar. Which is what you hear when the car is warmed up in my video and it raises the RPMs for a few seconds to make it sound like youre revving it on start up. That's completely optional. And it only does it when the car is up to temp.
The OEM BMW option is the Cat Warm Up. This closes one of your exhaust flaps and holds your RPMs up higher and longer to warm up your Cats quicker. For AC or heating functionality and even engine oil temps and everything associated with a fully warmed up car.
If you want to use BM3 to make your car quieter with or without aftermarket DP you would want to set close exhaust flaps and turn off cat heating. The RPMs then are under 1K when cold and car does not rumble when still cold. Only downside to that is I personally would not go WOT or high RPM for a longer time after starting to drive. Maybe 5 extra min or so after the Cold disappears on the dashboard.
This is just my non technical problem solving here. Thats all. So if you dont rev your car when cold. There should be no issues with making it quieter.

[freshxdough]

I believe the only detriment to not having the cold start functionally would be rough running until the 02 sensors come up to temp. Perhaps more emissions. I don't see any damage to engine happening

[suby01]

Another funny view for anyone interested. I told you I would get some vids.

[LimiX4m40]

Originally Posted by suby01

Another funny view for anyone interested. I told you I would get some vids.

Is that your car? It seems that there is no more original exhaust 😂

[suby01]

Originally Posted by LimiX4m40

Is that your car? It seems that there is no more original exhaust 😂

Yessir. Burble aggressiveness level is set at maximum 12. Stock is 3. Average with a tune is 5-6.

[freshxdough]

Originally Posted by suby01

Yessir. Burble aggressiveness level is set at maximum 12. Stock is 3. Average with a tune is 5-6.

Looking forward to OBD flash some day

[AlexFL]

Originally Posted by LimiX4m40

Is that your car? It seems that there is no more original exhaust 😂

Limi, what would Swiss people say if you drove around with such an exhaust noise? How many times would they call the police during a ten minute ride?

[LimiX4m40]

Originally Posted by AlexFL

Limi, what would Swiss people say if you drove around with such an exhaust noise? How many times would they call the police during a ten minute ride?

😂😝 that sucks here 🤯😤

but many people has realy loud exhausts 😂👌🏼 i would do it also but my wife 👩🏻🤯😂 (i had a m3 e93 with decat and full pipe) because of that she said me never more exhaust!🙈

[LimiX4m40]

Originally Posted by suby01

Yessir. Burble aggressiveness level is set at maximum 12. Stock is 3. Average with a tune is 5-6.

Nicee 😍😁 i will set the duration of the burbble to 2.5-3 sec i have it now on 0.7 it is to short

[suby01]

Originally Posted by LimiX4m40

Nicee 😍😁 i will set the duration of the burbble to 2.5-3 sec i have it now on 0.7 it is to short

Youre considering 3 seconds as your max???? I started at 4 for my conservative point. 😂 and keep upping it from there. You can do it. (Waterboy voice)

[LimiX4m40]

Originally Posted by suby01

Youre considering 3 seconds as your max???? I started at 4 for my conservative point. 😂 and keep upping it from there. You can do it. (Waterboy voice)

😂😂👌🏼 nice but for me 3 is a little bit to long he never stops if you push everytime a little the gas pedalö😜😂

Lets wait of a driving vid 😜

[g0t2bmiirii]

Someone sent this to me. Something about BMW uses for new software if it detects a tune? Has anyone heard or seen this?

[corn18]

There's another thread on this. Yes, it is true.

[g0t2bmiirii]

Originally Posted by corn18

There's another thread on this. Yes, it is true.

Should i be worried about when it comes to tuning my X3??