[suby01]

Originally Posted by jse81

Thanks suby for the ongoing updates.

Can BMW tell your DME is unlocked? What are your plans when taking it back to BMW for service?

Any dealer for any manufacturer is able to know anything about your car.
I know from personal experience 10 years ago with an Infiniti that was AWD and they also limited top speed to 130MPH. I had a warranty claim and they said how were you able to reach a recorded 160MPH speed? They even knew how many times the car was redlined in the last X miles. Again this was 10 years ago.
Im pretty sure today they can even tell if you had Cheerios or Fruit Loops for breakfast.

As for BMW service anytime Im going into the dealer I have the option of removing the tune. Process is less than 5 min total. And typically the dealer shouldn't care to dig deep into my ECU history on a scheduled maintenance. Unless its a critical catastrophic warranty claim then OH WELL. Hope that never happens again but it all then depends on your relationship with your service manager pretty much.
Even having the option to fully lock back the ECU and deleting all tune data with the BM3 software. Its never fully wiped.
That's the risk everyone takes when doing any type of modification on your car.

Oh and did I tell you guys that I love the car even more now? Mid 3 sec 0-60 is all you need.

[corn18]

Originally Posted by suby01

Oh and did I tell you guys that I love the car even more now? Mid 3 sec 0-60 is all you need.

You got an X3M for an extra $600. Wish my wife didn't have a do not mod policy on her X3 M40i.

[FSociety]

Originally Posted by suby01

I got a support email update from PTF that my DME ROM version should now be supported with the new BM3 agent V107. I went ahead and updated my agent tried to flash Stage 1 93 and success.

The flash process took maybe 3-5 min. I did still have the battery charger hooked up just in case.

Driving the car, it pulls like crazy now. No clue on HP increase or actual times. My Dragy just came in today letting it charge as we speak.

I can easily say it will be 11s 1/4 and 3s 0-60.

Only thing I am still waiting on for PTF is the Sport Display did not update the #'s it is still maxing out at 400 TQ and HP. They are in the process of getting updates to support that.

I got all the OTS maps downloaded already, next I will try Stage 2 93 and Stage 2 E30 once I figure out the E30 process.

Again super great support from PTF, all this time I get it its a new platform and even though others had a lot less issues with their 2020 B58 flash I personally also get it that there are different versions etc. So with my ROM also added its only going to be easier moving forward.

Lastly I will try to build my own WIFI Agent I heard BMW owners say you can make one for $40-50 and not over pay by $100.

Adam X3M40i has been working with PTF on the OTS maps , would be interesting to see when you manage to get Dragy to work how yours run.

I would not recommend STG2 Maps without a Downpipe, if you need a Catted one
https://www.bm3tuning.com/g30/catted-downpipe-b58 these guys are legit top quality

For Catless (Better Sound and Slightly more power) Catless https://www.bm3tuning.com/g30/x3-x4-540-b58-downpipe

Originally Posted by suby01

Any dealer for any manufacturer is able to know anything about your car.
I know from personal experience 10 years ago with an Infiniti that was AWD and they also limited top speed to 130MPH. I had a warranty claim and they said how were you able to reach a recorded 160MPH speed? They even knew how many times the car was redlined in the last X miles. Again this was 10 years ago.
Im pretty sure today they can even tell if you had Cheerios or Fruit Loops for breakfast.

As for BMW service anytime Im going into the dealer I have the option of removing the tune. Process is less than 5 min total. And typically the dealer shouldn't care to dig deep into my ECU history on a scheduled maintenance. Unless its a critical catastrophic warranty claim then OH WELL. Hope that never happens again but it all then depends on your relationship with your service manager pretty much.
Even having the option to fully lock back the ECU and deleting all tune data with the BM3 software. Its never fully wiped.
That's the risk everyone takes when doing any type of modification on your car.

Oh and did I tell you guys that I love the car even more now? Mid 3 sec 0-60 is all you need.

Being experienced with BMWs and BM3, I recommend if you ever need to service your car flash a few days prior taking into service ;-)

Originally Posted by corn18

You got an X3M for an extra $600. Wish my wife didn't have a do not mod policy on her X3 M40i.

You can put a tune only and she will not notice a thing

[g0t2bmiirii]

Originally Posted by corn18

You got an X3M for an extra $600. Wish my wife didn't have a do not mod policy on her X3 M40i.

Hahaha same here! I'm waiting to collect some side cash to do it but she's definitely not for it. BMW just sent me a letter for a recall so i think i should go take care if that before i do any tune

[LimiX4m40]

Originally Posted by suby01

I got a support email update from PTF that my DME ROM version should now be supported with the new BM3 agent V107. I went ahead and updated my agent tried to flash Stage 1 93 and success.

The flash process took maybe 3-5 min. I did still have the battery charger hooked up just in case.

Driving the car, it pulls like crazy now. No clue on HP increase or actual times. My Dragy just came in today letting it charge as we speak.

I can easily say it will be 11s 1/4 and 3s 0-60.

Only thing I am still waiting on for PTF is the Sport Display did not update the #'s it is still maxing out at 400 TQ and HP. They are in the process of getting updates to support that.

I got all the OTS maps downloaded already, next I will try Stage 2 93 and Stage 2 E30 once I figure out the E30 process.

Again super great support from PTF, all this time I get it its a new platform and even though others had a lot less issues with their 2020 B58 flash I personally also get it that there are different versions etc. So with my ROM also added its only going to be easier moving forward.

Lastly I will try to build my own WIFI Agent I heard BMW owners say you can make one for $40-50 and not over pay by $100.

Nice, how is ot with the „fart" when shifting the gear up? Or just having the burbles?

Let us now how its going with stage2, it writen that you need a decat or downpipe for stage2 so without ppf

[AcidLotus]

Originally Posted by LimiX4m40

Nice, how is ot with the „fart" when shifting the gear up? Or just having the burbles?

Let us now how its going with stage2, it writen that you need a decat or downpipe for stage2 so without ppf

I find it a little BS, honestly. I ran Stage 2 E30 tune on an otherwise stock B58 340i for probably 10K miles before lease return. Sure, I might have been down 15-20 HP over same car with a DP, but that thing flew. I'll probably do the same to the X3... currently on Stage 1.

[LimiX4m40]

Originally Posted by AcidLotus

I find it a little BS, honestly. I ran Stage 2 E30 tune on an otherwise stock B58 340i for probably 10K miles before lease return. Sure, I might have been down 15-20 HP over same car with a DP, but that thing flew. I'll probably do the same to the X3... currently on Stage 1.

Yes for sure you can do it i just think is not as good for the cat ad the shit opf

I will try it also what is really pity that the x3/4 m40i dont give the „fart" when you shift up to the next gear with the stock exhaust

[Alias1431]

Originally Posted by AcidLotus

I find it a little BS, honestly. I ran Stage 2 E30 tune on an otherwise stock B58 340i for probably 10K miles before lease return. Sure, I might have been down 15-20 HP over same car with a DP, but that thing flew. I'll probably do the same to the X3... currently on Stage 1.

Someone more educated about this stuff than I, correct me if I'm wrong, but I think the danger would be things like pre-ignition doing damage over the long term. As someone that plans to drive this for the next decade, that would be a hard pass from me.

[suby01]

Originally Posted by corn18

You got an X3M for an extra $600. Wish my wife didn't have a do not mod policy on her X3 M40i.

Its her main car and she demanded it to be faster. So my condolences go your way.

Originally Posted by FSociety

@[Adam X3M40i] has been working with PTF on the OTS maps , would be interesting to see when you manage to get Dragy to work how yours run.

Why wait for the pos Dragy to be fixed were both pretty local..

Originally Posted by FSociety

I would not recommend STG2 Maps without a Downpipe

Yup all set on that.

Originally Posted by FSociety

Being experienced with BMWs and BM3, I recommend if you ever need to service your car flash a few days prior taking into service ;-)

Solid advice really appreciate it.

Originally Posted by FSociety

You can put a tune only and she will not notice a thing

Oh no yes she will. She knew I was working with BM3 on getting a tune going and all of our battery and malfunciton issues. So finally when I got stage 1 all set. I told her to go for a drive and shes like WHAAAATTTTT??!!! This was literally after less than 1/2 mile down the road and under regular city driving.

[suby01]

Originally Posted by LimiX4m40

Nice, how is ot with the „fart" when shifting the gear up? Or just having the burbles?

Let us now how its going with stage2, it writen that you need a decat or downpipe for stage2 so without ppf

The OTS maps and the upshift is pretty much the same as stock. So in my case when I floor it and if Im in auto and let it redline or manual upshift the sounds is mainly stock sound.

The "burbles" when letting off the gas or down shifting between 5500rpm and 2000rpm you get nice crackles and pops. Noticeable outside the car, not so much inside the car with the stage 1 OTS flash.

But this is where it gets fun, because you have the option to use Custom Burble settings in the BM3 tune agent. So it has a option for burble duration and aggressiveness speed etc. Heres a screenshot of what you can configure.

I started at the base OTS burble of 5 aggressiveness and drove it for a few days and go up by half and it gets louder and crazier with every .5+.

My last test was on 7. Now I just moved it to 7.9 and will try it out. It goes allllll the way up to 12. I cant imagine how insane that will be.

[chicagofan00]

Originally Posted by suby01

The OTS maps and the upshift is pretty much the same as stock. So in my case when I floor it and if Im in auto and let it redline or manual upshift the sounds is mainly stock sound.

The "burbles" when letting off the gas or down shifting between 5500rpm and 2000rpm you get nice crackles and pops. Noticeable outside the car, not so much inside the car with the stage 1 OTS flash.

But this is where it gets fun, because you have the option to use Custom Burble settings in the BM3 tune agent. So it has a option for burble duration and aggressiveness speed etc. Heres a screenshot of what you can configure.

I started at the base OTS burble of 5 aggressiveness and drove it for a few days and go up by half and it gets louder and crazier with every .5+.

My last test was on 7. Now I just moved it to 7.9 and will try it out. It goes allllll the way up to 12. I cant imagine how insane that will be.

I want to do the tune almost solely just for the fact of being able to increase the aggressiveness of the burbles, however, I'm sure there is kind of a limit to how far it can be adjusted on a stock setup without doing any damage. I'm also not really wanting to be the guinea pig to seeing where that limit sits...plus we can pretty much only get 91 octane around here in the Phoenix area so it seems like the tune wouldn't be fully worth its value while having to keep with the Stage 1 91 octane tune and only barely adjusting the burble aggressiveness.

[suby01]

Originally Posted by chicagofan00

I want to do the tune almost solely just for the fact of being able to increase the aggressiveness of the burbles, however, I'm sure there is kind of a limit to how far it can be adjusted on a stock setup without doing any damage. I'm also not really wanting to be the guinea pig to seeing where that limit sits...plus we can pretty much only get 91 octane around here in the Phoenix area so it seems like the tune wouldn't be fully worth its value while having to keep with the Stage 1 91 octane tune and only barely adjusting the burble aggressiveness.

You should be able to use the OTS burble tune for stage 1 with complete stock car. I heard somewhere that 5 is the level you can definitely use on 100% stock cats and will have no issues. Someone more familiar with BM3 can confirm this specific #.

And I got a response from PTF regarding the burble custom setup.
Well, it has EGT limitation built in, if too hot EGT (Exhaust gas temp) it will stop to burble, so you can go high but may just stop the burble too early

[chicagofan00]

Originally Posted by suby01

You should be able to use the OTS burble tune for stage 1 with complete stock car. I heard somewhere that 5 is the level you can definitely use on 100% stock cats and will have no issues. Someone more familiar with BM3 can confirm this specific #.

And I got a response from PTF regarding the burble custom setup.
Well, it has EGT limitation built in, if too hot EGT (Exhaust gas temp) it will stop to burble, so you can go high but may just stop the burble too early

Interesting. Thanks for the info.

[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

[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

Sure thing will work on getting some start up exhaust vids and drive by's for everyone to see. I have the start up roar ON. So the initial first maybe 5 seconds of when starting the car is crazy loud.
But you can also turn this off and in addition disable cat heating so the RPMs start low and stay low on the initial cold that.

[g0t2bmiirii]

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

I'm interested in adjusting the burble myself.. someone was telling me (not in forums) it's not good for the car to mess with it. I don't know how true that is, forgot the reason why. when i speak to him again I'll ask him and I'll get some second opinions from you guys

[freshxdough]

Originally Posted by g0t2bmiirii

I'm interested in adjusting the burble myself.. someone was telling me (not in forums) it's not good for the car to mess with it. I don't know how true that is, forgot the reason why. when i speak to him again I'll ask him and I'll get some second opinions from you guys

Realistically the only bad thing that could happen is you start damaging the catalyst material if you have stock cats. That's why if you're trying to go crazy with burbles you go catless or at the very least sport cat. If I blow out my sport car I'd be happy to replace it again versus replacing the OEM cat.

[chicagofan00]

Originally Posted by freshxdough

Realistically the only bad thing that could happen is you start damaging the catalyst material if you have stock cats. That's why if you're trying to go crazy with burbles you go catless or at the very least sport cat. If I blow out my sport car I'd be happy to replace it again versus replacing the OEM cat.

So in a non-official manner but as speaking as someone that has years of experience working on BMWs, what do you think the realistic probability of blowing out the stock cat by upping the burbles a bit via the tune? Not talking about going crazy but just upping a couple of notches.

Also, what do you think the realistic issues are with regards to putting a stage 1 91 octane tune on a stock car would be considering routine maintenance is performed as indicated and the driver isn't redlining it at frequent intervals without properly warming up?

There is never a true way of knowing what may or may not go wrong long term but just trying to get an understanding of what one would typically expect when tuning a BMW. My only experience tuning was with a Tahoe (my last vehicle) and whether or not it was related to the tune I ended up running into engine issues with under 50k miles to the cost of $10k (luckily the dealership was great to work with and covered it under warranty).

[freshxdough]

So in a non-official manner but as speaking as someone that has years of experience working on BMWs, what do you think the realistic probability of blowing out the stock cat by upping the burbles a bit via the tune? Not talking about going crazy but just upping a couple of notches.

Also, what do you think the realistic issues are with regards to putting a stage 1 91 octane tune on a stock car would be considering routine maintenance is performed as indicated and the driver isn't redlining it at frequent intervals without properly warming up?

There is never a true way of knowing what may or may not go wrong long term but just trying to get an understanding of what one would typically expect when tuning a BMW. My only experience tuning was with a Tahoe (my last vehicle) and whether or not it was related to the tune I ended up running into engine issues with under 50k miles to the cost of $10k (luckily the dealership was great to work with and covered it under warranty).

340i guys have blown out their stock cat but I think that's after extreme increases in aggression and burble duration. A couple notches may be fine for long term. Also keeping duration the same should help. As long as you're not running sport plus and burbles and backfiring all day every day you 'should' be fine. I'd suggest with any tuned car or not, doing half interval oil changes. I personally beat on my M40i but even regardless on my personal vehicles I would do an oil change every 5k for a normal 10k interval and only reset the light at the 10k interval. Piece of mind and fresh engine oil lubrication can never be a downside. Also considering how inexpensive an oil change is it's really a no brainer.

[suby01]

A little bit of a longer term update. All OTS maps from BM3 work great. Stage 1 & 2 wtih 93 Octane and E30.
Current very minor issues when flashing from 1 tune to the other I still get a check engine light. This is not due to the CAT Inefficiency I have that option turned OFF.
I run the code check in the DME and it is multiple iDrive errors failure to start car play, instrument cluster etc. But thats just a CEL everything works fine.
Clearing the CEL codes does not fix it.

I learned that to fix this I must then flash back to stock, and back to the same map again and then clear codes and the CEL will shut off.

So I cant go from stage 1 to stage 2 right away. I have a extra pointless step from stage 1 to stock. Clear codes and then to stage 2, and I have no codes.

Also lastly the performance displays are not changed from the stock 400 hp and tq limit.

PTF is already aware of these issues I have been working with them sending them my findings, and they have a fix in place they will be releasing a whole new OTS version shortly, this will change the sport display to higher values and hopefully the flash CEL issue is also solved.

[AcidLotus]

Originally Posted by suby01

A little bit of a longer term update. All OTS maps from BM3 work great. Stage 1 & 2 wtih 93 Octane and E30.
Current very minor issues when flashing from 1 tune to the other I still get a check engine light. This is not due to the CAT Inefficiency I have that option turned OFF.
I run the code check in the DME and it is multiple iDrive errors failure to start car play, instrument cluster etc. But thats just a CEL everything works fine.
Clearing the CEL codes does not fix it.

I learned that to fix this I must then flash back to stock, and back to the same map again and then clear codes and the CEL will shut off.

So I cant go from stage 1 to stage 2 right away. I have a extra pointless step from stage 1 to stock. Clear codes and then to stage 2, and I have no codes.

Also lastly the performance displays are not changed from the stock 400 hp and tq limit.

PTF is already aware of these issues I have been working with them sending them my findings, and they have a fix in place they will be releasing a whole new OTS version shortly, this will change the sport display to higher values and hopefully the flash CEL issue is also solved.

I'd be interested to see if I have the same experience, or others with a 2020 G01 with iD7. I haven't yet bought the map pack to play with anything other than stage 1. I barely drive the thing, so . I did notice the HP graph today said 400 tho.

[Ashsarhaz93]

Originally Posted by suby01

The 2020 X3 M40i has the new engine which produces 382 hrspwrs

What tunes are available or would be recommended to be tried and trusted, and which brands/tunes should M40i owners stay away from?

I have seen a lot a different talk on separate threads but nothing consolidated.

There are off the shelf tunes, plug and play options, or is a best option for dyno tune.

And this is for someone who would rather keep their M40i "stockish" maybe an intake and an exhaust. Were not talking about a full build E85, forged everything SAV.

Thanks!

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