// FIRST Akrapovic M4 exhaust in the US installed (pics and videos inside!) / TAG MS

MSteve5036 · 08-14-2014, 02:44 PM

Sounds really good

Miko226 · 08-14-2014, 02:51 PM

Quote:

Originally Posted by GregW / Oregon

Gorgeous components, but can't justify that kind of price. Wish I could.

+1

Jblack4083 · 08-14-2014, 03:06 PM

From the video, sounds horrible at low RPMs with even more of the lawn mower sound. WOT It sounds very nice and special.

jkim723 · 08-14-2014, 03:50 PM

I loooove the new look of the cf tips. Anyone know if it'll fit on the e92 akra slip on?

monkawekrue · 08-14-2014, 03:57 PM

damn.

G30 B58 · 08-14-2014, 04:19 PM

Quote:

Originally Posted by 04RC51

Amazing stuff! Everyone can have their MPE, I'm going with Akra for sure.

You gonna let me install that beauty for you? Looks amazing and cannot wait to hear it.

FormulaMMM · 08-14-2014, 04:58 PM

Akra site doesn't seem to have weight savings and performance gains for full system (including downpipes)?

The Automotive Enthusiast · 08-14-2014, 05:11 PM

That's the way the car needs to sound from the factor.

PABrian · 08-14-2014, 05:11 PM

Quote:

Originally Posted by 04RC51

Did you weigh parts installed vs parts taken off to determine net real world weigh loss?

If I missed this info among the couple threads posted, I apologize.

Quote:

Originally Posted by FormulaMMM

Akra site doesn't seem to have weight savings and performance gains for full system (including downpipes)?

Also really interested to know how much weight is actually saved with this system. Being that it's a full titanium setup, it should be a number worth bragging about!

e92proper · 08-14-2014, 05:21 PM

I hope that's just the video because that sounds absolutely terrible. The price is crazy too

Gabe@TAG · 08-14-2014, 05:31 PM

Quote:

Originally Posted by e92proper

I hope that's just the video because that sounds absolutely terrible. The price is crazy too

It's difficult to capture the true sound of the exhaust especially when dealing with wind and road noise. I assure you this thing sounds fantastic in person.

damnitBobby · 08-14-2014, 05:39 PM

i think it actually sounds pretty good.. and i'm a pretty harsh critic of exhaust sounds

04RC51 · 08-14-2014, 06:01 PM

Quote:

Originally Posted by OBMWBrian

Also really interested to know how much weight is actually saved with this system. Being that it's a full titanium setup, it should be a number worth bragging about!

You would think they would be bragging, but the first install has totally avoided one of the biggest questions. Makes me wonder.

You really only have 4 big questions, price/hp gains/weight savings/sound. We have the price, Akra gave us the HP gains on their site, we've heard horrible sound clips but where is the last piece of the puzzle?

Money2536 · 08-14-2014, 06:56 PM

Quote:

Originally Posted by Grubbs@TAG

It's difficult to capture the true sound of the exhaust especially when dealing with wind and road noise. I assure you this thing sounds fantastic in person.

Buy this for a DSLR, because the $7,000 exhaust sounds horrible. $140, problem solved.

http://www.rodemic.com/microphones/videomic

yoelev · 08-14-2014, 07:10 PM

Sounds like an e46 m3

Albert ///M3 · 08-14-2014, 07:11 PM

Rode only records in one direction, as it is a directional mic. It might be hard to capture as the coverage angle is too narrow.

I would suggest Zoom H4N as it covers wilder angle and it is stereo. Also you would need a windscreen to prevent wind noise being recorded while driving.

l!ve · 08-14-2014, 07:45 PM

My opinion on the price thing. Do note that while I have Akras on other cars, I haven't installed or seen one on the new M3/4s yet.

It's easy to make an exhaust loud. However, in my past experiences, the Akras deal with one thing which few manufacturers are able to - droning. Sitting in a car with drone in stop and go traffic sucks and my past Akras never had that problem.

When moving from stainless steel to titanium, there is a huge premium. Shaving the first few pounds off a stock car can be easily justified, but as the weight savings go up, the marginal cost spikes (as in race cars). A similar phenomena happens with wheels.

R&D. Now many exhaust manufacturers have R&D facilities like Akra. Anyone can manufacture an exhaust. Testing the exhaust to fine tune requires money.

And of course, the brand. Akra will have a premium. Our contribution to their sponsorship, advertising and videos.

Does it justify paying? I don't know. I did. But everyone has different priorities.

l!ve · 08-14-2014, 07:46 PM

Can you confirm whether the boot sensor gets disabled when the Akra diffuser is installed? Thanks!

04RC51 · 08-14-2014, 09:49 PM

Quote:

Originally Posted by l!ve

Can you confirm whether the boot sensor gets disabled when the Akra diffuser is installed? Thanks!

Yes, this!

hova00 · 08-14-2014, 10:52 PM

Its like a hot chick with a f'ed up voice.

Alext · 08-14-2014, 10:52 PM

Any flyby videos of the sound? This is very important if one is to justify the price before purchase. The sound a few inches from the exhaust doesn't truly reflect what the car sounds like from outside. Also interior sounds would be good and standing revving.

jc05e46m3 · 08-14-2014, 10:58 PM

Quote:

Originally Posted by Alex07M3

Just watched the video, it went from weed eater sound to weed eater with an exhaust leak!

Now I'm sure you've not heard them IRL.

08-14-2014, 02:44 PM	#67
MSteve5036 Captain 125 Rep 713 Posts Drives: 08/99 M3s Join Date: Dec 2011 Location: PA iTrader: (1)	Sounds really good
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08-14-2014, 03:06 PM	#69
Jblack4083 Captain 116 Rep 888 Posts Drives: E46 ///M3 JB/CB Join Date: Jan 2009 Location: Queens, NYC iTrader: (0)	From the video, sounds horrible at low RPMs with even more of the lawn mower sound. WOT It sounds very nice and special.
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08-14-2014, 03:50 PM	#70
jkim723 Private 3 Rep 75 Posts Drives: E92 M3 Join Date: Feb 2008 Location: Cincinnati, OH iTrader: (4)	I loooove the new look of the cf tips. Anyone know if it'll fit on the e92 akra slip on?
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08-14-2014, 03:57 PM	#71
monkawekrue Brigadier General 67 Rep 3,214 Posts Drives: f25 X3 AW Join Date: Aug 2010 Location: LOS ANGELES, CA iTrader: (2) Garage List 2004 e46 M3 AW RETIRED [0.00] 2003 e46 M3 CB RETIRED [0.00] 2013 f25 X3 AW [0.00] 2007 e92 328i SG RE ... [0.00] 2007 e90 335i AW RE ... [0.00]	damn. __________________
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08-14-2014, 04:58 PM	#73
FormulaMMM Brigadier General 3663 Rep 3,422 Posts Drives: E90 M3 Join Date: Oct 2011 Location: Midwest iTrader: (2)	Akra site doesn't seem to have weight savings and performance gains for full system (including downpipes)? __________________ M4 GTS, GT3, C63 S \| E90 M3s, E39 M5
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08-14-2014, 05:21 PM	#76
e92proper Banned 45 Rep 531 Posts Drives: 2011 e92 335 / 2013 X3 Join Date: Jun 2014 Location: NJ/NY/MD iTrader: (0)	I hope that's just the video because that sounds absolutely terrible. The price is crazy too
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08-14-2014, 05:39 PM	#78
damnitBobby Major 992 Rep 1,370 Posts Drives: 2018 M3 ZCP Join Date: Jan 2014 Location: Houston iTrader: (0)	i think it actually sounds pretty good.. and i'm a pretty harsh critic of exhaust sounds
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08-14-2014, 07:10 PM	#81
yoelev First Lieutenant 19 Rep 366 Posts Drives: M3 Join Date: Apr 2012 Location: NYC iTrader: (0)	Sounds like an e46 m3 __________________
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08-14-2014, 07:11 PM	#82
Albert ///M3 Enlisted Member 3 Rep 32 Posts Drives: M3 Join Date: Apr 2014 Location: New Jersey iTrader: (0)	Rode only records in one direction, as it is a directional mic. It might be hard to capture as the coverage angle is too narrow. I would suggest Zoom H4N as it covers wilder angle and it is stereo. Also you would need a windscreen to prevent wind noise being recorded while driving.
	Appreciate 0 Quote

08-14-2014, 07:45 PM	#83
l!ve Second Lieutenant 39 Rep 204 Posts Drives: M3 F80 Join Date: Jul 2014 Location: Asia iTrader: (0) Garage List 1989 Porsche 930 Turbo [0.00] 2011 Ferrari FF [0.00] 2015 BMW M3 [0.00]	My opinion on the price thing. Do note that while I have Akras on other cars, I haven't installed or seen one on the new M3/4s yet. It's easy to make an exhaust loud. However, in my past experiences, the Akras deal with one thing which few manufacturers are able to - droning. Sitting in a car with drone in stop and go traffic sucks and my past Akras never had that problem. When moving from stainless steel to titanium, there is a huge premium. Shaving the first few pounds off a stock car can be easily justified, but as the weight savings go up, the marginal cost spikes (as in race cars). A similar phenomena happens with wheels. R&D. Now many exhaust manufacturers have R&D facilities like Akra. Anyone can manufacture an exhaust. Testing the exhaust to fine tune requires money. And of course, the brand. Akra will have a premium. Our contribution to their sponsorship, advertising and videos. Does it justify paying? I don't know. I did. But everyone has different priorities.
	Appreciate 0 Quote

08-14-2014, 07:46 PM	#84
l!ve Second Lieutenant 39 Rep 204 Posts Drives: M3 F80 Join Date: Jul 2014 Location: Asia iTrader: (0) Garage List 1989 Porsche 930 Turbo [0.00] 2011 Ferrari FF [0.00] 2015 BMW M3 [0.00]	Can you confirm whether the boot sensor gets disabled when the Akra diffuser is installed? Thanks!
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08-14-2014, 10:52 PM	#86
hova00 Major 1191 Rep 1,360 Posts Drives: G80 M3C Join Date: Apr 2008 Location: EAST COAST iTrader: (7)	Its like a hot chick with a f'ed up voice.
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08-14-2014, 10:52 PM	#87
Alext Banned 138 Rep 2,042 Posts Drives: B M W Join Date: Apr 2008 Location: Everest iTrader: (2)	Any flyby videos of the sound? This is very important if one is to justify the price before purchase. The sound a few inches from the exhaust doesn't truly reflect what the car sounds like from outside. Also interior sounds would be good and standing revving.
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