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Technical Topics B58 6-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications M340i MPE (M Performance Exhaust) installed + sound clips

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      10-10-2019, 12:17 PM   #67
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Originally Posted by Newbmwguys View Post
Awesome answer and exactly what I wanted to hear lol! Still didn't get an m340 but when I do this will be part of the shopping cart. Thanks for answering.
If you're worried about Comfort being obnoxiously loud, then worry not, even with the MPE it's still very refined. You'll definitely get some more pops and burbles than you would with stock but they're still very subtle. The MPE really shines in S+ mode.
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      10-10-2019, 12:48 PM   #68
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Originally Posted by themur View Post
Quote:
Originally Posted by Newbmwguys View Post
Awesome answer and exactly what I wanted to hear lol! Still didn't get an m340 but when I do this will be part of the shopping cart. Thanks for answering.
If you're worried about Comfort being obnoxiously loud, then worry not, even with the MPE it's still very refined. You'll definitely get some more pops and burbles than you would with stock but they're still very subtle. The MPE really shines in S+ mode.
Awesome! What about the fart sounds when switching gears. Did that get louder/more pronounced?
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      10-10-2019, 12:58 PM   #69
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Originally Posted by Newbmwguys View Post
Awesome! What about the fart sounds when switching gears. Did that get louder/more pronounced?
I would say so. It's louder and I'm actually hearing them more frequently now.
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      10-10-2019, 01:07 PM   #70
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Quote:
Originally Posted by themur View Post
So I finally got mine installed, big thanks to Jason340Msport for taking the first leap. Like many of you, the video between stock and MPE sounded far too familiar but according to Jason it sounded much better in person so I took the risk. I can now confirm there is a notable difference between the two that the audio in the clips aren't able to catch. In person, the MPE sounds far different from stock and is a lot deeper sounding now which I felt was missing from the stock exhaust. Thanks again for the clips Jason!
Can you comment on the install. Is it pretty straight fw? I have not peaked under the car yet, does it involve cutting out the old system and installing the new? Or does one slide out and the other one slides in?

I am thinking where I will be storing my stock system as the darn thing looks pretty big. in F10, it was just the mufflers and did not take much room at all.
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      10-10-2019, 01:18 PM   #71
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Originally Posted by TTG View Post
Can you comment on the install. Is it pretty straight fw? I have not peaked under the car yet, does it involve cutting out the old system and installing the new? Or does one slide out and the other one slides in?

I am thinking where I will be storing my stock system as the darn thing looks pretty big. in F10, it was just the mufflers and did not take much room at all.
I'm not too sure as I got the install done at a dealer since I don't have the space or capability of a self-install. From my discussion with the shop foreman prior to the install he was under the impression that it slides out and slides in which would coincide with how quick the shop got it done. But again, my apologies I did not do it myself so I'd take my experience with a grain of salt.
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      10-12-2019, 02:53 PM   #72
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Quote:
Originally Posted by TTG View Post
Can you comment on the install. Is it pretty straight fw? I have not peaked under the car yet, does it involve cutting out the old system and installing the new? Or does one slide out and the other one slides in?

I am thinking where I will be storing my stock system as the darn thing looks pretty big. in F10, it was just the mufflers and did not take much room at all.
It does involved cutting the old system out but it is very straightforward. Our tech had the MPE installed on mine in 10-15 minutes.
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      10-12-2019, 02:55 PM   #73
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Quote:
Originally Posted by themur View Post
So I finally got mine installed, big thanks to Jason340Msport for taking the first leap. Like many of you, the video between stock and MPE sounded far too familiar but according to Jason it sounded much better in person so I took the risk. I can now confirm there is a notable difference between the two that the audio in the clips aren't able to catch. In person, the MPE sounds far different from stock and is a lot deeper sounding now which I felt was missing from the stock exhaust. Thanks again for the clips Jason!
Glad you took the leap and got it! It is definitely worth it!
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      10-19-2019, 09:21 PM   #74
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Quote:
Originally Posted by IMS-340MP View Post
Strange, the system looks different to MPPSK on the F30 340i.

Quote:
Originally Posted by Jason340Msport View Post
Just came in today. Install is tomorrow.
MPE is more basic than MPPSK and doesn't include a tune. This just has one valve on the right side that closes in comfort mode and opens in sport and sport plus, it may be slightly louder than stock and not have the gunshots of the MPPSK, so not as dramatic as MPPSK and no performance increase, so it is also less expensive. There is also an MPE for the 340 with no tune. The MPPSK has two valves that open on each side and are closed in comfort and below 4K rpm, when it's open you basically have a straight pipe cat back exhaust vs. this the exhaust gases still pass through the muffler when the valve is open.
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      10-20-2019, 03:36 AM   #75
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True, I have MPPSK and the system is brilliant and the sound is amazing.

It's a shame they didn't make it like MPPSK, the M340i is an amazing car and deserves a better sound.

Quote:
Originally Posted by bimmer456 View Post
MPE is more basic than MPPSK and doesn't include a tune. This just has one valve on the right side that closes in comfort mode and opens in sport and sport plus, it may be slightly louder than stock and not have the gunshots of the MPPSK, so not as dramatic as MPPSK and no performance increase, so it is also less expensive. There is also an MPE for the 340 with no tune. The MPPSK has two valves that open on each side and are closed in comfort and below 4K rpm, when it's open you basically have a straight pipe cat back exhaust vs. this the exhaust gases still pass through the muffler when the valve is open.
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      10-21-2019, 10:41 AM   #76
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Quote:
Originally Posted by IMS-340MP View Post
True, I have MPPSK and the system is brilliant and the sound is amazing.

It's a shame they didn't make it like MPPSK, the M340i is an amazing car and deserves a better sound.

Quote:
Originally Posted by bimmer456 View Post
MPE is more basic than MPPSK and doesn't include a tune. This just has one valve on the right side that closes in comfort mode and opens in sport and sport plus, it may be slightly louder than stock and not have the gunshots of the MPPSK, so not as dramatic as MPPSK and no performance increase, so it is also less expensive. There is also an MPE for the 340 with no tune. The MPPSK has two valves that open on each side and are closed in comfort and below 4K rpm, when it's open you basically have a straight pipe cat back exhaust vs. this the exhaust gases still pass through the muffler when the valve is open.
Could still see bmw coming out with an MPPSK down the road, on the f30 it took a year to two after they upgraded to the B58. And that was at LCI so deep into the lifecycle (also true they had the tune and exhaust separate on the n55)

If I had to guess they want to get the M3 final power figures sorted out and car released to market (although the s58 is in the wild in the mx3) and evaluate demand for the kit before offering another bridge to get the m340 closer to m3.
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      10-22-2019, 12:08 AM   #77
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Quote:
Originally Posted by xlover View Post
Quote:
Originally Posted by IMS-340MP View Post
True, I have MPPSK and the system is brilliant and the sound is amazing.

It's a shame they didn't make it like MPPSK, the M340i is an amazing car and deserves a better sound.

Quote:
Originally Posted by bimmer456 View Post
MPE is more basic than MPPSK and doesn't include a tune. This just has one valve on the right side that closes in comfort mode and opens in sport and sport plus, it may be slightly louder than stock and not have the gunshots of the MPPSK, so not as dramatic as MPPSK and no performance increase, so it is also less expensive. There is also an MPE for the 340 with no tune. The MPPSK has two valves that open on each side and are closed in comfort and below 4K rpm, when it's open you basically have a straight pipe cat back exhaust vs. this the exhaust gases still pass through the muffler when the valve is open.
Could still see bmw coming out with an MPPSK down the road, on the f30 it took a year to two after they upgraded to the B58. And that was at LCI so deep into the lifecycle (also true they had the tune and exhaust separate on the n55)

If I had to guess they want to get the M3 final power figures sorted out and car released to market (although the s58 is in the wild in the mx3) and evaluate demand for the kit before offering another bridge to get the m340 closer to m3.
The N55 MPPK did come with an intake, the MPE was sold separately. Not sure when the MPPK came out. My understanding was that the power output on the G20 M340 was already substantially higher than the F30 MPPSK it was like they were including it standard so they weren't going to release a separate power kit, just an exhaust as the power level is already getting close to the previous M3. Looking at the power levels in the X3M and X3M comp/X4M should give us an idea of what the next M3 will be like. If the power kit is topping 400 horsepower that is getting close to S58 base territory. Not sure how much more people would spend with BM3 being much cheaper though I'm not sure when or if the current BM3 will work with B58TU.
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      10-22-2019, 04:56 AM   #78
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We were talking about the sound side of MPPSK not the tune.

Quote:
Originally Posted by bimmer456 View Post
The N55 MPPK did come with an intake, the MPE was sold separately. Not sure when the MPPK came out. My understanding was that the power output on the G20 M340 was already substantially higher than the F30 MPPSK it was like they were including it standard so they weren't going to release a separate power kit, just an exhaust as the power level is already getting close to the previous M3. Looking at the power levels in the X3M and X3M comp/X4M should give us an idea of what the next M3 will be like. If the power kit is topping 400 horsepower that is getting close to S58 base territory. Not sure how much more people would spend with BM3 being much cheaper though I'm not sure when or if the current BM3 will work with B58TU.
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      10-24-2019, 08:48 PM   #79
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Quote:
Originally Posted by themur View Post
I would say so. It's louder and I'm actually hearing them more frequently now.
Do you know the part number for the exhaust? It doesn’t appear on bmw website and my dealer doesn’t seem to know about it, they only mentioned the one for the 330i.
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      10-25-2019, 05:31 AM   #80
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Do you know the part number for the exhaust? It doesn’t appear on bmw website and my dealer doesn’t seem to know about it, they only mentioned the one for the 330i.
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      11-10-2019, 10:07 AM   #81
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If anyone is on the fence about getting the performance exhaust I'd highly recommend it if you have the option.

Just took delivery of my M340i yesterday (coincidentally right after tossing a M340i around in an autocross at the BMW UDE event) and I can immediately tell it is quite a bit louder on the interior and exterior.

I did a dual resonator delete on my F30 340i and I believe the M340i with MPE is louder and I still haven't taken the car past 3k RPM yet.
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      11-12-2019, 08:52 AM   #82
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Quote:
Originally Posted by Newbmwguys View Post
Thanks for posting this.

To me this sounds very similar to the stock setup. Could it be video vs. reality kind of thing? I really want to know how this sounds like under heavy load and changing gears. And downshifts too because why not!
I have to agree although exhausts never get the full sound from a video unless someone has excellent quality mic's for getting sound which is usually someones iphone not a professional setup.
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      12-05-2019, 10:46 AM   #83
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Quote:
Originally Posted by Jason340Msport View Post
I will say the videos don't bring out the difference in sound that it should. There is a MAJOR difference between the stock exhaust and the MPE. I've started my car and ran it in front of my coworkers and they can't believe the difference in sound.

I will get a side by side of a stock M340 with mine and hopefully that will bring out the difference. Depending on the day(Saturday evening or Sunday morning) I would be willing to meet up as well.
Did you ever get this video? I just placed an order for my M340i and would love to hear it before I look into this option.
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      12-08-2019, 12:36 PM   #84
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Quote:
Originally Posted by Gdiddy23 View Post
Did you ever get this video? I just placed an order for my M340i and would love to hear it before I look into this option.
I would love to see/hear this as well. On my 340 I went with the Dinan mid pipe and I really liked that but I am considering this option on the upcoming M340

Last edited by chenry; 12-11-2019 at 03:01 PM..
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      12-20-2019, 10:33 AM   #85
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Anybody have videos of this yet? It's awesome to hear the great reviews but please, for the rest of us on the fence, send some videos!!!!!!
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      12-20-2019, 10:40 PM   #86
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I have a video

My Mineral Grey M340xi with Port Installed MPE

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      12-21-2019, 12:21 AM   #87
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My Mineral Grey M340xi with Port Installed MPE

Saw this already! Hoping to see some more footage and some drive by footage if possible!
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      12-22-2019, 10:48 AM   #88
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Can someone who has MPE already installed please confirm if the muffler has the label "M Performance" stamped on it? It would be embossed on the underside of the muffler.
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