M Performance Exhaust vs. Akrapovic

icoburn · 03-20-2019, 10:39 PM

Struggling to make a decision. Any real World comparisons? Which one would you choose and why. Thanks!

shahin · 03-21-2019, 12:14 AM

Akropovic
Full Titanium
Better hp and tq gain
Almost same price
Better looking carbon tips

josec70 · 03-21-2019, 08:17 AM

Lots of good options outside of MPE and Akra IMO. HP gains and weight savings are negligible at best so it boils down to build quality and sound IMO. I went with an iPE system and could not be happier ... great CF tips as well.

Ever34 · 03-21-2019, 11:34 AM

I have the MPE and sound wise it does not disappoint. I have heard the Akra and that sounds great also....I just preferred the MPE.

Demon Barber · 03-21-2019, 12:20 PM

MPE can be had cheaper than the akra, and the tips look much better. They both sound great.

windtendo · 03-21-2019, 01:22 PM

Quote:

Originally Posted by Demon Barber

MPE can be had cheaper than the akra, and the tips look much better. They both sound great.

The M-performance tips look great, but they're nearly the same as the Eisenmann tips AND you lose the valve functionality. My vote goes to Akra.

Oh and btw, there's a package that just got delivered earlier today. Says Akrapovic on the box

Ever34 · 03-21-2019, 01:32 PM

Honestly there is not one moment I said to myself man I wish this thing had valves. It sound great throughout the whole power band. If your taking it easy it is by no means overbearing or too much. Stomp on it and it's whole other ballgame. Pops and crackles are also eliminated with the exhaust button.

I've heard both and the MPE just sounds better. However that is a personal observation.

icoburn · 03-21-2019, 04:29 PM

Thanks for everyone's input. Seems to be no clear preference. I agree that it's a subjective thing. I've had a few other Akrapovic systems and never been disappointed, their quality is outstanding. So I decided to go Akra, along with Keller Performance down-pipes and Eventuri intakes. I'm confident that will sound wicked

PDOT · 03-22-2019, 11:59 PM

Quote:

Originally Posted by icoburn

Thanks for everyone's input. Seems to be no clear preference. I agree that it's a subjective thing. I've had a few other Akrapovic systems and never been disappointed, their quality is outstanding. So I decided to go Akra, along with Keller Performance down-pipes and Eventuri intakes. I'm confident that will sound wicked

I'm leaning towards the same set up. Please post a vid when completed

windtendo · 03-25-2019, 10:35 AM

After installing over the weekend, I'm absolutely in love with the Akrapovic. Its sound is so unique. I love that I can go to complete stealth mode with valves closed and engine in Comfort.

Opening the valves and selecting Sport+... wow. It's difficult to describe, and the YouTube videos don't do it any justice. The best three words I could use to describe the sound-- hollow, dry, and exotic. There's now a hard pop during upshifts at WOT

When I have some time I'll try to take some pictures and video.

Neptune7 · 03-25-2019, 10:59 AM

I assume you don't void the warranty with the MPE?

windtendo · 03-25-2019, 01:24 PM

Quote:

Originally Posted by Neptune7

I assume you don't void the warranty with the MPE?

Warranty on what? The entire car? The factory exhaust? Changing an exhaust doesn't simply void a car's warranty. The dealer would have to prove that the swapped exhaust affected the defective item(s) in question. If the radiator started leaking and you had an aftermarket exhaust, why would the dealer not fix/replace the leaking radiator under warranty?

Demon Barber · 03-25-2019, 06:00 PM

Quote:

Originally Posted by windtendo

Warranty on what? The entire car? The factory exhaust? Changing an exhaust doesn't simply void a car's warranty. The dealer would have to prove that the swapped exhaust affected the defective item(s) in question. If the radiator started leaking and you had an aftermarket exhaust, why would the dealer not fix/replace the leaking radiator under warranty?

Very unlikely. Some folks just like the idea of keeping everything OEM. Nothing wrong with that.

Neptune7 · 03-25-2019, 07:05 PM

Quote:

Originally Posted by Demon Barber

Very unlikely. Some folks just like the idea of keeping everything OEM. Nothing wrong with that.

^ This.

Also - some folks like to avoid the risk of a warranty challenge, however remote. Others mod the heck out of their cars. Different strokes, etc.

gtenedio · 05-02-2019, 09:34 AM

its a mere price diff. all other variables are similar. including sound

carholic · 04-15-2021, 10:18 AM

Quote:

Originally Posted by Ever34

Honestly there is not one moment I said to myself man I wish this thing had valves. It sound great throughout the whole power band. If your taking it easy it is by no means overbearing or too much. Stomp on it and it's whole other ballgame. Pops and crackles are also eliminated with the exhaust button.

I've heard both and the MPE just sounds better. However that is a personal observation.

Your insights are very helpful. So are you saying that with the MPE, the sport exhaust button doesn’t work as normal, but works in turning off crackles and pop? If that’s the case, then it would be ideal.

I just wish it were a bit louder during driving. As it is loud at cold start and then quiets down a lot an fit too quiet during regular driving around town.

Thank you.

Demon Barber · 04-17-2021, 11:25 AM

The thing most folks don't get about the stock exhaust is that the button does not control the valves anyway, just burbles and pops on the overrun. That feature still works on a system with no valves, including the MPE which I have had for over 2 years now. I love it.

The valves are opened and closed by the computer based on the M settings and speed. The exhaust button is NOT an open vs closed switch for the valves. I tested this specifically before I got my MPE.

boost4breakfast · 04-18-2021, 05:29 PM

the exhaust flow on the M performance resembles more of a straight pipe than the okra

carholic · 04-19-2021, 12:25 PM

Wow! I never knew that. I am used to the sport exhaust button on Porschs that open and close the valves. Good to know.

Quote:

Originally Posted by Demon Barber

The thing most folks don't get about the stock exhaust is that the button does not control the valves anyway, just burbles and pops on the overrun. That feature still works on a system with no valves, including the MPE which I have had for over 2 years now. I love it.

The valves are opened and closed by the computer based on the M settings and speed. The exhaust button is NOT an open vs closed switch for the valves. I tested this specifically before I got my MPE.

AHall · 04-19-2021, 02:16 PM

So what does the button control?

Demon Barber · 04-19-2021, 07:49 PM

Quote:

Originally Posted by AHall

So what does the button control?

Electronically controls the pops and bangs when letting off the accelerator and downshifting. The reason I know this is because the button works on my car with MPE. It has no valves at all.

AHall · 04-19-2021, 08:46 PM

Quote:

Originally Posted by Demon Barber

Quote:

Originally Posted by AHall

So what does the button control?

Electronically controls the pops and bangs when letting off the accelerator and downshifting. The reason I know this is because the button works on my car with MPE. It has no valves at all.

Does this work if you are in Drive (D) mode?

View Poll Results: Which do you prefer the Akrapovic or M Performance Exhaust?
M Performance	43	54.43%
Akrapovic	36	45.57%
Voters: 79. You may not vote on this poll

03-20-2019, 10:39 PM	#1
icoburn Enlisted Member 13 Rep 42 Posts Drives: 2017 M6 Gran Coupe Join Date: Jun 2011 Location: Franklin, TN iTrader: (0)	M Performance Exhaust vs. Akrapovic Struggling to make a decision. Any real World comparisons? Which one would you choose and why. Thanks!
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03-21-2019, 12:14 AM	#2
shahin Lieutenant 169 Rep 403 Posts Drives: 18 M5 FE,15 M6 GC, 12 M5,06 M5 Join Date: Mar 2015 Location: Toronto iTrader: (0)	Akropovic Full Titanium Better hp and tq gain Almost same price Better looking carbon tips
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03-21-2019, 08:17 AM	#3
josec70 Major General 4064 Rep 5,231 Posts Drives: 22' Individual Chalk M5C Join Date: Dec 2015 Location: Miami iTrader: (2)	Lots of good options outside of MPE and Akra IMO. HP gains and weight savings are negligible at best so it boils down to build quality and sound IMO. I went with an iPE system and could not be happier ... great CF tips as well. __________________ CURRENT: 22' INDIVIDUAL M5\| CHALK \| TARTUFO \| CCB \| MPE \| H&R \| IND GONE: 19' M5C\| SINGAPORE GREY\| ARAGON\|VELOS VLS-06\|H&R\|iPE\|IND\|XPEL\|CF\|RADENSO GONE: 15' F10 M5\|BSM\|BLACK\|VELOS VSS-S2\|KW\|AKRA\|IND\|CF \|ESCORT 360\|VELOS PIGGY GONE: 13' F10 M5\|SG\|BLACK\|AKRA\|KW\|IND LONG GONE: 09' E60 M5\|02' E39 M5
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03-21-2019, 11:34 AM	#4
Ever34 Lieutenant 325 Rep 519 Posts Drives: F90 M5 Join Date: Jun 2018 Location: Ottawa, Canada iTrader: (0)	I have the MPE and sound wise it does not disappoint. I have heard the Akra and that sounds great also....I just preferred the MPE.
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03-21-2019, 12:20 PM	#5
Demon Barber Captain 292 Rep 605 Posts Drives: 2018 M5, 2022 911 Turbo S Join Date: Dec 2015 Location: NC iTrader: (0)	MPE can be had cheaper than the akra, and the tips look much better. They both sound great.
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03-21-2019, 01:32 PM	#7
Ever34 Lieutenant 325 Rep 519 Posts Drives: F90 M5 Join Date: Jun 2018 Location: Ottawa, Canada iTrader: (0)	Honestly there is not one moment I said to myself man I wish this thing had valves. It sound great throughout the whole power band. If your taking it easy it is by no means overbearing or too much. Stomp on it and it's whole other ballgame. Pops and crackles are also eliminated with the exhaust button. I've heard both and the MPE just sounds better. However that is a personal observation.
	Appreciate 0 Quote

03-21-2019, 04:29 PM	#8
icoburn Enlisted Member 13 Rep 42 Posts Drives: 2017 M6 Gran Coupe Join Date: Jun 2011 Location: Franklin, TN iTrader: (0)	Thanks for everyone's input. Seems to be no clear preference. I agree that it's a subjective thing. I've had a few other Akrapovic systems and never been disappointed, their quality is outstanding. So I decided to go Akra, along with Keller Performance down-pipes and Eventuri intakes. I'm confident that will sound wicked
	Appreciate 0 Quote

03-25-2019, 10:35 AM	#10
windtendo Lieutenant Colonel 1716 Rep 1,909 Posts Drives: 2023 M5C Join Date: Apr 2013 Location: Houston iTrader: (1) Garage List 2023 BMW M5C [0.00] 1989 BMW M3 [0.00]	After installing over the weekend, I'm absolutely in love with the Akrapovic. Its sound is so unique. I love that I can go to complete stealth mode with valves closed and engine in Comfort. Opening the valves and selecting Sport+... wow. It's difficult to describe, and the YouTube videos don't do it any justice. The best three words I could use to describe the sound-- hollow, dry, and exotic. There's now a hard pop during upshifts at WOT When I have some time I'll try to take some pictures and video.
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03-25-2019, 10:59 AM	#11
Neptune7 Major 1433 Rep 1,360 Posts Drives: M5 CS Join Date: May 2018 Location: N/A iTrader: (0)	I assume you don't void the warranty with the MPE?
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05-02-2019, 09:34 AM	#15
gtenedio Major 348 Rep 1,237 Posts Drives: '%E2%80%9909 e92 m3, '19 X3, % Join Date: Apr 2011 Location: nyc iTrader: (1)	its a mere price diff. all other variables are similar. including sound __________________ .
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04-17-2021, 11:25 AM	#17
Demon Barber Captain 292 Rep 605 Posts Drives: 2018 M5, 2022 911 Turbo S Join Date: Dec 2015 Location: NC iTrader: (0)	The thing most folks don't get about the stock exhaust is that the button does not control the valves anyway, just burbles and pops on the overrun. That feature still works on a system with no valves, including the MPE which I have had for over 2 years now. I love it. The valves are opened and closed by the computer based on the M settings and speed. The exhaust button is NOT an open vs closed switch for the valves. I tested this specifically before I got my MPE.
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04-18-2021, 05:29 PM	#18
boost4breakfast Enlisted Member 3 Rep 38 Posts Drives: 992 GT3 24 M4C 21 M5C (gone) Join Date: Jan 2021 Location: CLE iTrader: (0)	the exhaust flow on the M performance resembles more of a straight pipe than the okra
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04-19-2021, 02:16 PM	#20
AHall Lieutenant Colonel 974 Rep 1,795 Posts Drives: 1993 Nissan 240sx Join Date: Oct 2008 Location: Frisco, Texas iTrader: (0)	So what does the button control?
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