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BMW M5 F90 (2018+) General Forums Engine, Exhaust, Drivetrain, Tuning Modifications    F90 M5 M performance exhaust....finally here

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      01-31-2019, 11:12 AM   #23
Ever34
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Quote:
Originally Posted by Demon Barber View Post
Called my local dealer, and they quoted me $7600 with tax, not including installation. And, they said they have no idea when it would arrive. Any place I can get it faster and/or cheaper?

I paid 7000 Can which is 5300$ US plus $250 install. It took three weeks to get mine so that should be what you should expect. As for the price shop around you should be able to get 15% discount. Mind you I've been buying from my dealer for over 20 yrs.
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      01-31-2019, 11:15 AM   #24
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Originally Posted by onfireX5 View Post
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Originally Posted by Ever34 View Post
It has valves. Open/close button will work
Picture ?
No picture as you can't see the valves they are built in. I can confirm that the valve open/close button works as it should. Start up in efficiency is definitely quieter than it is in sport +.


I can also confirm that sounds absolutely amazing. Pops and crackles at every downshift in sport +
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      01-31-2019, 11:24 AM   #25
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Wow sounds good!
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      01-31-2019, 11:30 AM   #26
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Quote:
Originally Posted by Demon Barber View Post
Called my local dealer, and they quoted me $7600 with tax, not including installation. And, they said they have no idea when it would arrive. Any place I can get it faster and/or cheaper?
https://www.bmwpartsnow.com/oem-part...20-18302455574
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      01-31-2019, 12:02 PM   #27
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Quote:
Originally Posted by onfireX5 View Post
Nice to see a price drop since its no longer made by Akra.

My 2016 M5 had the M Performance Akra and while it was almost 9k retail it sounded brilliant.

This one sounds good too; Id like to hear it outside and not in the containment of a shops walls that accentuates the sound.
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      01-31-2019, 12:17 PM   #28
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Quote:
Originally Posted by Vic55 View Post
Quote:
Originally Posted by onfireX5 View Post
Nice to see a price drop since its no longer made by Akra.

My 2016 M5 had the M Performance Akra and while it was almost 9k retail it sounded brilliant.

This one sounds good too; Id like to hear it outside and not in the containment of a shops walls that accentuates the sound.
I'll get a couple ext videos over the weekend. Not equipped to hook camera while driving but I'll definitely take some rev videos.
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      01-31-2019, 01:33 PM   #29
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Quote:
Originally Posted by Ever34 View Post
I paid 7000 Can which is 5300$ US plus $250 install. It took three weeks to get mine so that should be what you should expect. As for the price shop around you should be able to get 15% discount. Mind you I've been buying from my dealer for over 20 yrs.
Nice, congratulations
Is it made by meistershaft?
That's what the M representatives where saying at last car meeting
Unofficially 😉
If you live in gta pm please and let's set up a coffee and meet.
I have a few other f90 M5 friends that would love to join us
And hear your exhaust in person.
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      01-31-2019, 04:44 PM   #30
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Quote:
Originally Posted by Ever34 View Post
It finally came in and getting installed as I type this.
It looks nice.
It's an Akrapovic with a BMW part number?
The last one for the old model was an Akra.
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      01-31-2019, 04:51 PM   #31
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Quote:
Originally Posted by onfireX5 View Post
Quote:
Originally Posted by Demon Barber View Post
Called my local dealer, and they quoted me $7600 with tax, not including installation. And, they said they have no idea when it would arrive. Any place I can get it faster and/or cheaper?
https://www.bmwpartsnow.com/oem-part...20-18302455574
It's only available for the US market?
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      01-31-2019, 05:41 PM   #32
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Quote:
Originally Posted by shahin View Post
Quote:
Originally Posted by Ever34 View Post
I paid 7000 Can which is 5300$ US plus $250 install. It took three weeks to get mine so that should be what you should expect. As for the price shop around you should be able to get 15% discount. Mind you I've been buying from my dealer for over 20 yrs.
Nice, congratulations
Is it made by meistershaft?
That's what the M representatives where saying at last car meeting
Unofficially 😉
If you live in gta pm please and let's set up a coffee and meet.
I have a few other f90 M5 friends that would love to join us
And hear your exhaust in person.
I was told the same thing also but who knows. All I know is that it sounds awesome .

I live in Ottawa so kinda far. Summertime though I usually go down and take in a jays game and spend a couple days.
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      01-31-2019, 09:27 PM   #33
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Quote:
Originally Posted by Ever34 View Post
18 30 2 455 574
When I google the part number, it shows up as “M Performance Silencer Syste 189020” - is that correct? Seems like multiple sites have it and the price seems correct I suppose, but that’s an odd description... I was going to pull trigger on the Dinan exhaust but like the way this sounds way better
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      01-31-2019, 10:50 PM   #34
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Quote:
Originally Posted by sweet_sheeba View Post
When I google the part number, it shows up as “M Performance Silencer Syste 189020” - is that correct? Seems like multiple sites have it and the price seems correct I suppose, but that’s an odd description... I was going to pull trigger on the Dinan exhaust but like the way this sounds way better
Part number is: 18 30 2 455 574

It is available in 2 days time

I believe Boysen is still the manufacturer for BMW M Performance Exhaust Systems.
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      02-01-2019, 12:02 AM   #35
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Sounds good.
Can't wait for outside video.
Indoor video always tend to sound louder and have some echo effect.
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      02-01-2019, 08:39 AM   #36
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Sounds good.
Can't wait for outside video.
Indoor video always tend to sound louder and have some echo effect.
Will post some outside videos for sure. .
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      02-01-2019, 09:11 AM   #37
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Quote:
Originally Posted by Ever34 View Post
Will post some outside videos for sure. .
Take a few pictures of the rear muffler mounted with the tailpipe section and see if the actuators are hooked up. I still don't see ant valves in the system. Must be hidden very well.
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      02-01-2019, 09:15 AM   #38
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Quote:
Originally Posted by onfireX5 View Post
Quote:
Originally Posted by Ever34 View Post
Will post some outside videos for sure. .
Take a few pictures of the rear muffler mounted with the tailpipe section and see if the actuators are hooked up. I still don't see ant valves in the system. Must be hidden very well.
The valves open/close button works. Not sure how else you want me to put it.
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      02-01-2019, 09:20 AM   #39
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Quote:
Originally Posted by Ever34 View Post
The valves work. Not sure how else you want me to put it.

I think what he is trying to say is we can’t see the valves anywhere. Every system for this car or any other previous M car with a calves exhaust had a very noticeable machined bracket where the stock valve assembly mounts. We don’t see that in the photos you posted so we’re just curious if this system has a design that is completely different than any previous design ever. If you can look under the muffler section near the back of the car and see where the wires are connected and take a picture it would help us figure out the design.
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      02-01-2019, 09:28 AM   #40
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Quote:
Originally Posted by trev230 View Post
Quote:
Originally Posted by Ever34 View Post
The valves work. Not sure how else you want me to put it.

I think what he is trying to say is we can't see the valves anywhere. Every system for this car or any other previous M car with a calves exhaust had a very noticeable machined bracket where the stock valve assembly mounts. We don't see that in the photos you posted so we're just curious if this system has a design that is completely different than any previous design ever. If you can look under the muffler section near the back of the car and see where the wires are connected and take a picture it would help us figure out the design.

Got it.

The tech said the valves were built in and he's never seen such a set up. I did ask based the initial question about the valves if the open/close button was plugged in anywhere and he said yes. I do know that there was 3 or 4 additional small boxes with the kit so maybe hardware was in there.

All I know for the moment is that I can open and close the valves. Even while in efficiency mode If i close the valves it gets even quieter.

Anyways I'll see what I can do about pics but not sure I want to lay down in the snow or dirty garage floor. I do have to go back to the shop in a couple weeks so while it's up I'll take some shots.
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      02-01-2019, 09:38 AM   #41
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Quote:
Originally Posted by Ever34 View Post
The valves open/close button works. Not sure how else you want me to put it.
This pic should help you. See the valve on each side of the tailpipe after the muffler. MPerformance should be similar.
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      02-01-2019, 09:47 AM   #42
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Quote:
Originally Posted by onfireX5 View Post
Quote:
Originally Posted by Ever34 View Post
The valves open/close button works. Not sure how else you want me to put it.
This pic should help you. See the valve on each side of the tailpipe after the muffler. MPerformance should be similar.
I understand what your looking for.

Let me ask you this. If there were no valves in the system the open/close button would not quiet the system down right?

I'm more of a "does it work or not" kind of guy. Not particularly bothered with how it works so excuse my ignorance when it comes to specifics.
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      02-01-2019, 09:49 AM   #43
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The button also impacts ASD. AFAIk in "efficiency mode" which I assume you mean Comfort engine mode?, the valves are closed by default and the button just turns on and off ASD, which would make things sound quieter/louder inside the car.
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      02-01-2019, 09:53 AM   #44
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The button also impacts ASD. AFAIk in "efficiency mode" which I assume you mean Comfort engine mode?, the valves are closed by default and the button just turns on and off ASD, which would make things sound quieter/louder inside the car.
Bingo
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