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      10-05-2019, 09:03 PM   #45
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I got my x3 m40i 2020 about 2 weeks ago. She has about 1000 miles now. My father has the '19 X3 m40i. The main difference I hear in the exhaust are the pops and crackles come in sooner on the '19. For example, lifting off from 3-4K rpm will bring in the pops/crackles on the '19. On my '20, I had to rev it up to past 6k rpm in 2nd to get the loud pops/crackles. The 2020 is more subdued to me.

I'm aware of the 1200 mi break in. So for those arming up for the comments... don't care.
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      10-05-2019, 09:24 PM   #46
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Originally Posted by jjw2331 View Post
I got my x3 m40i 2020 about 2 weeks ago. She has about 1000 miles now. My father has the '19 X3 m40i. The main difference I hear in the exhaust are the pops and crackles come in sooner on the '19. For example, lifting off from 3-4K rpm will bring in the pops/crackles on the '19. On my '20, I had to rev it up to past 6k rpm in 2nd to get the loud pops/crackles. The 2020 is more subdued to me.

I'm aware of the 1200 mi break in. So for those arming up for the comments... don't care.
I would really prefer the 18/19 exhaust operation. Pops and burbles and crackles anywhere from like 5k and below. I'll have to wait until I get closer to 1,000 before I really get into it
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      12-06-2019, 07:37 PM   #47
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Quote:
Originally Posted by freshxdough View Post
I would really prefer the 18/19 exhaust operation. Pops and burbles and crackles anywhere from like 5k and below. I'll have to wait until I get closer to 1,000 before I really get into it
Hey so did you pass the 1k mark? Any pops and burbles? I just got my 2020 X4 M40i and it doesn't pop, crackle or burble very disappointed idk if I have to wait for the engine to break in a bit more..
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      12-06-2019, 07:42 PM   #48
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Originally Posted by obscurD View Post
Quote:
Originally Posted by freshxdough View Post
I would really prefer the 18/19 exhaust operation. Pops and burbles and crackles anywhere from like 5k and below. I'll have to wait until I get closer to 1,000 before I really get into it
Hey so did you pass the 1k mark? Any pops and burbles? I just got my 2020 X4 M40i and it doesn't pop, crackle or burble very disappointed idk if I have to wait for the engine to break in a bit more..
There is no break in. The pops and burbles have different behavior on 2020 M40i. The car really only seems to pop when letting off at high RPMs, above like 4,500 and up. Sport Plus driving mode and in normal D seem to get the most aggressive pops and burbles. In Manual mode in sport plus it's very hard to get it to make consistent noise. Overall disappointed but I'm going to wait until BM3 comes out with a product and can customize the burbles. I'm wanting mine to sound like an M340i or Supra pops and burbles, considering they are almost the same engine.
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      12-06-2019, 07:45 PM   #49
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Originally Posted by obscurD View Post
Hey so did you pass the 1k mark? Any pops and burbles? I just got my 2020 X4 M40i and it doesn't pop, crackle or burble very disappointed idk if I have to wait for the engine to break in a bit more..
I'm still in " break in" but i took mine over 6k today with DSC off/Traction +? it made a nice rack and run-off sound. was almost home and playing around so not sure if normal for sport plus or the dsc off helped (no idea why it would). didn't repeat in my neighborhood, may try it tomorrow.
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      12-06-2019, 08:52 PM   #50
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Originally Posted by TX3M View Post
Be careful what you wish for. Personally, I got tired of all the pops and crackles real fast. It's fun when you want it, but really annoying when you don't. The only way to turn it off on 2018 and 2019 models is for the engine to NOT be in Sport mode (which is boring and results in poor throttle response).
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Originally Posted by JDBrown View Post
I would trade for a more reserved exhaust. As TX3M mentioned on our vehicles it becomes a battle of keeping in comfort with horrible throttle response and quiet, or sport with good throttle response but aggressive exhaust. I feel a bit like a tool driving through my neighborhood with it cracking and popping when I just cant stand how sluggish it is in comfort. I know it is totally personal preference... but I would swap out for a more reserved exhaust any day.
I've said this in a few threads now, but you guys gotta try sport individual with engine in sport and transmission in comfort. You get good throttle response with burbles and very few pops. The few pops you do get can be prevented by rolling off the throttle more slowly. Hit the stick into M/S for a temporary boost in response but with more (and louder) pops.

It took me a while to figure this out but now its my default drive mode with suspension in comfort and I love it.
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      12-08-2019, 06:00 PM   #51
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I have created a new exhaust video. At about 2,000 miles now. Warmed up and revved to red line.

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      12-09-2019, 12:05 AM   #52
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No one is talking about sport+. In my M340i the exhaust is notably louder with crackles in sport+ compared to sport. There is clearly something more open in sport+ and M40i should be about the same.
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      12-09-2019, 12:08 AM   #53
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No one is talking about sport+. In my M340i the exhaust is notably louder with crackles in sport+ compared to sport. There is clearly something more open in sport+ and M40i should be about the same.
Are you stating that the X3 M40i and the M340i should sound exactly the same in sport plus?
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      12-09-2019, 02:16 AM   #54
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First post here, but felt the need to chip in given my recent experience with my 2020 X3 M40i (end of September build).

I'm in the UK, and having followed the X3 M40i for a year or so, I was well aware of the WLTP changes made to the 2019 cars onwards; I love the sound of the 2018 cars but wasn't disappointed when I tested the 2019 model before ordering my 2020 version.

When I got my car, again I was pleasantly surprised; whilst not the lous pops and crackles of the 2018 cars, it was actually fairly loud and made some nice sounds on overrun and under load. The key word there however is 'was'.

I had to take my car to the dealer to have a fix implemented following what I can only describe as a Transformer-like sound coming from the speakers when I revved the car occasionally. Honestly, it was like Optimus Prime was being channeled through the speakers! Although only occasionally, I asked the dealer what they thought and they were happy to get it in the fix the issue as it was something they'd heard of.

Here's the sting in the tail - when I got the car back from the dealers last week, after what they describe as a 'reprogram', all burbles, pops, mild crackles are gone. The car is so so quiet now! I made a video a few weeks ago, mainly to hear what the car was like from outside, link to it here:



I'm going to put together a video post-reprogram, but honestly at this point (and given a host of other issues I've had with the car since I picked it up a month ago) I'm thinking of taking it back to the dealer and asking them to reset the change they've made if possible.

Gutted isn't a strong enough word!
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      12-10-2019, 12:24 AM   #55
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Quote:
Originally Posted by freshxdough View Post
Quote:
Originally Posted by Transfer View Post
No one is talking about sport+. In my M340i the exhaust is notably louder with crackles in sport+ compared to sport. There is clearly something more open in sport+ and M40i should be about the same.
Are you stating that the X3 M40i and the M340i should sound exactly the same in sport plus?
I would think so. For 2020 they are the same setup. Someone compare their sport to sport+ exhaust sound and report back.
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      12-10-2019, 01:18 AM   #56
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Quote:
Originally Posted by Transfer View Post
Quote:
Originally Posted by freshxdough View Post
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Originally Posted by Transfer View Post
No one is talking about sport+. In my M340i the exhaust is notably louder with crackles in sport+ compared to sport. There is clearly something more open in sport+ and M40i should be about the same.
Are you stating that the X3 M40i and the M340i should sound exactly the same in sport plus?
I would think so. For 2020 they are the same setup. Someone compare their sport to sport+ exhaust sound and report back.
I posted a video of Sport +. Sport has even less agressive exhaust. The behavior is different. All 2020 X3 M40i exhaust behavior has changed.
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      12-10-2019, 05:50 AM   #57
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You guys with the 2020 version have extra horsepower though and I think 1mpg more fuel efficiency.
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      12-10-2019, 09:56 AM   #58
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Originally Posted by MikesBMW View Post
You guys with the 2020 version have extra horsepower though and I think 1mpg more fuel efficiency.
rather have the sound. hp rating is underrated by BMW anyways and 1mpg doesn't make any difference under real world conditions
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      12-10-2019, 10:00 AM   #59
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rather have the sound. hp rating is underrated by BMW anyways and 1mpg doesn't make any difference under real world conditions
In Europe the 2020 went from 354hp to 360hp. No big difference. Same torque. I guess the difference to the US 382hp are the European WLTP regulations, but I am not sure.
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      12-10-2019, 10:11 AM   #60
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In Europe the 2020 went from 354hp to 360hp. No big difference. Same torque. I guess the difference to the US 382hp are the European WLTP regulations, but I am not sure.
Nope. Mine will be 285 kw (382 hp). Built in Germany.
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      12-10-2019, 10:56 AM   #61
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Nope. Mine will be 285 kw (382 hp). Built in Germany.
Well, it will be 280kW if that is the case. But then I wonder when they will change the websites. Looking at bmw.de, bmw.se etc all still show 265kW.
Anyway, I know mine is 260kW.
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      12-10-2019, 12:21 PM   #62
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I wonder if this change has something to do with the law(s) in various states. Even though this is far from a new law, here is MSS 169.69 :


Every motor vehicle shall at all times be equipped with a muffler in good working order which blends the exhaust noise into the overall vehicle noise and is in constant operation to prevent excessive or unusual noise, and no person shall use a muffler cutout, bypass, or similar device upon a motor vehicle on a street or highway. The exhaust system shall not emit or produce a sharp popping or crackling sound. Every motor vehicle shall at all times be equipped with such parts and equipment so arranged and kept in such state of repair as to prevent carbon monoxide gas from entering the interior of the vehicle.

No person shall have for sale, sell or offer for sale or use on any motor vehicle any muffler that fails to comply with the specifications as required by the commissioner of public safety.




Further more from the equipment statutes:

Injunctive power of attorney general. Whenever it appears to the satisfaction of the attorney general that any party has sold or offered for sale or is selling or offering for sale any such new motor vehicle or new item of motor vehicle equipment in violation of this section, the attorney general may, in the name of the state, seek injunctive relief in any court of competent jurisdiction against any such violation or threatened violation.
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      12-10-2019, 01:52 PM   #63
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Quote:
Originally Posted by ScottyRyan2019 View Post
I wonder if this change has something to do with the law(s) in various states. Even though this is far from a new law, here is MSS 169.69 :


Every motor vehicle shall at all times be equipped with a muffler in good working order which blends the exhaust noise into the overall vehicle noise and is in constant operation to prevent excessive or unusual noise, and no person shall use a muffler cutout, bypass, or similar device upon a motor vehicle on a street or highway. The exhaust system shall not emit or produce a sharp popping or crackling sound. Every motor vehicle shall at all times be equipped with such parts and equipment so arranged and kept in such state of repair as to prevent carbon monoxide gas from entering the interior of the vehicle.

No person shall have for sale, sell or offer for sale or use on any motor vehicle any muffler that fails to comply with the specifications as required by the commissioner of public safety.




Further more from the equipment statutes:

Injunctive power of attorney general. Whenever it appears to the satisfaction of the attorney general that any party has sold or offered for sale or is selling or offering for sale any such new motor vehicle or new item of motor vehicle equipment in violation of this section, the attorney general may, in the name of the state, seek injunctive relief in any court of competent jurisdiction against any such violation or threatened violation.
That disproves the theory of all the other models backfiring and popping though. I've been told the exhaust backfires for the X3 M40 have been reduced because it was reported that the catalytic converters were getting damaged.

Which still wouldn't make sense why they didn't reduce the exhaust behavior for any other models.
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      12-10-2019, 03:40 PM   #64
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Originally Posted by Aktalacken View Post
Nope. Mine will be 285 kw (382 hp). Built in Germany.
Are they building X3s in Germany? Not a WLTP OPF euro version? Intrigued.
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      12-10-2019, 04:32 PM   #65
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Are they building X3s in Germany? Not a WLTP OPF euro version? Intrigued.
Got the VIN from the dealer. All in line with what I have ordered. The VIN starts with WBA which would indicate Germany. Looking now at the BMW plants there, none lists the X3 as a product they produce at the moment...
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      12-10-2019, 05:08 PM   #66
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Got the VIN from the dealer. All in line with what I have ordered. The VIN starts with WBA which would indicate Germany. Looking now at the BMW plants there, none lists the X3 as a product they produce at the moment...
Mine's WBA...from Spartanburg. The dealer said South Africa which confused things at first.
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