Quietting down Akra Evo ...

Superfly_M3 · 01-16-2013, 12:54 AM

Hey Guys,

I bought a used Akra Evo (full system) from a forum member here. While the sound is perfect at most RPMs. The Akra has a deep growl during idle (~800rpm). It also has a resonance at 1-1,200rpm. Parking underground is literally scary. The echo is insane. Has anyone tried adding additional resonators to quiet the Akra down a bit? Looking at the system, the very front section of the Akra might fit two resonators.

Any advice is appreciated.

1MOREMOD · 01-16-2013, 12:58 AM

dont ruin it.

Superfly_M3 · 01-16-2013, 01:00 AM

I'm going to give some old lady a heart attack in the undergound garage

Sean@PYSpeed.com · 01-16-2013, 01:11 AM

LOL, leave your foot off the gas pedal and let the thing roll. =)

M3GTC · 01-16-2013, 01:52 AM

Akra Evo is the mellowest full exhaust you will get used to it. I have a full catless setup w/o resonators and that sets off car alarms in underground structures so you should be okay

aus · 01-16-2013, 01:55 AM

Put the stock X-pipe back in, it's not a huge difference, but there is a difference.

RBB · 01-16-2013, 06:57 AM

I find the Akra to be really tame. Nothing you can do except remove the x pipe as aus said. I think you'll get used to it, though.

Superfly_M3 · 01-16-2013, 07:21 AM

I think I just did. I started it this morning (2nd day of driving with it) and I said who gives a shit what other people think

Whatta sound.

Grail05 · 01-16-2013, 07:35 AM

dont fawk up a beautiful exhaust. its a Titanium exhaust. i have not seen an individual resonator that is made out of TI unless its complete with an exhaust directly from an aftermarket manufarture like AKRA.

my advise is to sell your xpipe. no other exhaust will be tame as the AKRA... in parking garages anyways....

brandons · 01-16-2013, 07:59 AM

I set off a car alarm with just a slip on. That being said, I love the sound but cannot live with the drone so had to put it up for sale.

GIdriver · 01-16-2013, 08:00 AM

Quote:

Originally Posted by chriszeh

dont ruin it.

+1

Longboarder · 01-16-2013, 08:03 AM

Quote:

Originally Posted by Superfly_M3

I think I just did. I started it this morning (2nd day of driving with it) and I said who gives a shit what other people think

Whatta sound.

I love the deep bass sound in underground garages! While I'm in my 40's...I guess it brings out my inner teen-ager as I find myself trying to set off alarms

THE TECH · 01-16-2013, 08:28 AM

It doesn't get much quieter than the Akra so you may need to consider going back to the stock exhaust if you need something quieter.

m33 · 01-16-2013, 08:46 AM

Quote:

Originally Posted by THE TECH

It doesn't get much quieter than the Akra so you may need to consider going back to the stock exhaust if you need something quieter.

Exactly !!!

Superfly_M3 · 01-16-2013, 09:05 AM

1 alarm and counting. Do Porsches keep the alarm in memory? My parking neighbours might have o be notified of my false alarms so they don't freak out every morning

ortho281 · 01-16-2013, 09:40 AM

Keep the Akra Evo as is. IMO it is one of the best sounding, best looking, lightest and quietest aftermarket exhaust out there. I love mine!

1MOREMOD · 01-16-2013, 09:46 AM

Quote:

Originally Posted by Superfly_M3

I'm going to give some old lady a heart attack in the undergound garage

Try it!

IMG · 01-16-2013, 10:03 AM

Akra is very quiet thats why i got one.Cant get quieter than that !

W/// · 01-16-2013, 10:24 AM

Quote:

Originally Posted by chriszeh

Try it!

Been there done that... with my $300 OEM exhaust mod

GOLFFRR · 01-16-2013, 11:51 AM

Quote:

Originally Posted by img

Akra is very quiet thats why i got one.Cant get quieter than that !

+1 this is one of the biggest reason I went with the EVO as well. for me its the best all around exhaust out there so far. I heard the new ESS exhaust though the other day and it could be a contender very soon

PS 10,000 post

Chriskm3 · 01-16-2013, 12:22 PM

Quote:

Originally Posted by brandons

I set off a car alarm with just a slip on. That being said, I love the sound but cannot live with the drone so had to put it up for sale.

Drone?
I have heard superflym3's akra from 1200 to 3000 rpm range and there is no drone. Only sound you hear is the deep exhaust note and the low frequency rattle.
I became very drone sensitive after hfc xpipe with a magnaflow exhaust. It was hard to think at times. I reverted back to stock exhaust for my hearing sake

Dellort_M3 · 01-16-2013, 01:40 PM

Quote:

Originally Posted by Superfly_M3

I'm going to give some old lady a heart attack in the undergound garage

Quote:

Originally Posted by chriszeh

Try it!

LOL

01-16-2013, 12:54 AM	#1
Superfly_M3 Captain 94 Rep 959 Posts Drives: 2011 M3 Join Date: Sep 2011 Location: Toronto iTrader: (0)	Quietting down Akra Evo ... Hey Guys, I bought a used Akra Evo (full system) from a forum member here. While the sound is perfect at most RPMs. The Akra has a deep growl during idle (~800rpm). It also has a resonance at 1-1,200rpm. Parking underground is literally scary. The echo is insane. Has anyone tried adding additional resonators to quiet the Akra down a bit? Looking at the system, the very front section of the Akra might fit two resonators. Any advice is appreciated.
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01-16-2013, 12:58 AM	#2
1MOREMOD - 11912 Rep 23,185 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	dont ruin it. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC bars\|GC race control arms\|GC bushings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster\|Euro header\|BW exhaust\|K&N c.a.i.\|Epic race tune\|Rouge pulleys\|Seibon CF hood\|CSL bumper\|apr gt 250 & splitter\|ST-40\|XR-2\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|BMWpedals\|BW studs\|
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01-16-2013, 01:00 AM	#3
Superfly_M3 Captain 94 Rep 959 Posts Drives: 2011 M3 Join Date: Sep 2011 Location: Toronto iTrader: (0)	I'm going to give some old lady a heart attack in the undergound garage
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01-16-2013, 01:11 AM	#4
Sean@PYSpeed.com Major General 327 Rep 8,952 Posts Drives: 2009 AW E92 M3 Join Date: Nov 2009 Location: Bay Area iTrader: (22)	LOL, leave your foot off the gas pedal and let the thing roll. =)
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01-16-2013, 01:52 AM	#5
M3GTC Second Lieutenant 46 Rep 219 Posts Drives: F82 M4 Join Date: Aug 2012 Location: SoCal iTrader: (4) Garage List 2009 BMW M3 [9.50]	Akra Evo is the mellowest full exhaust you will get used to it. I have a full catless setup w/o resonators and that sets off car alarms in underground structures so you should be okay
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01-16-2013, 01:55 AM	#6
aus Major General 1029 Rep 9,093 Posts Drives: Odysse Join Date: Jul 2005 Location: Seal Beach, CA iTrader: (10)	Put the stock X-pipe back in, it's not a huge difference, but there is a difference. __________________ Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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01-16-2013, 06:57 AM	#7
RBB First Lieutenant 28 Rep 343 Posts Drives: E92 M3 Join Date: Mar 2012 Location: NOVA iTrader: (11)	I find the Akra to be really tame. Nothing you can do except remove the x pipe as aus said. I think you'll get used to it, though. Last edited by RBB; 01-16-2013 at 10:01 AM..
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01-16-2013, 07:21 AM	#8
Superfly_M3 Captain 94 Rep 959 Posts Drives: 2011 M3 Join Date: Sep 2011 Location: Toronto iTrader: (0)	I think I just did. I started it this morning (2nd day of driving with it) and I said who gives a shit what other people think Whatta sound.
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01-16-2013, 07:35 AM	#9
Grail05 Putcha ang ganda... 371 Rep 5,447 Posts Drives: 17 F82 M4 Join Date: Feb 2010 Location: Los Angeles, Brea CA. iTrader: (10)	dont fawk up a beautiful exhaust. its a Titanium exhaust. i have not seen an individual resonator that is made out of TI unless its complete with an exhaust directly from an aftermarket manufarture like AKRA. my advise is to sell your xpipe. no other exhaust will be tame as the AKRA... in parking garages anyways.... __________________
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01-16-2013, 07:59 AM	#10
brandons Private 5 Rep 56 Posts Drives: Join Date: Nov 2005 Location: iTrader: (0)	I set off a car alarm with just a slip on. That being said, I love the sound but cannot live with the drone so had to put it up for sale.
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01-16-2013, 08:28 AM	#13
THE TECH BimmerPost Supporting Vendor 374 Rep 12,980 Posts Drives: BPMsport 2012 E92 M3 Join Date: Jun 2011 Location: Kansas iTrader: (45) Garage List 2013 Nissan GTR [0.00] 2019 Sierra Denali ... [0.00] 1999 Nissan Silvia [0.00] 1999 Nissan Skyline ... [0.00] 1998 Toyota Supra [0.00]	It doesn't get much quieter than the Akra so you may need to consider going back to the stock exhaust if you need something quieter.
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01-16-2013, 09:05 AM	#15
Superfly_M3 Captain 94 Rep 959 Posts Drives: 2011 M3 Join Date: Sep 2011 Location: Toronto iTrader: (0)	1 alarm and counting. Do Porsches keep the alarm in memory? My parking neighbours might have o be notified of my false alarms so they don't freak out every morning
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01-16-2013, 09:40 AM	#16
ortho281 Major 255 Rep 1,164 Posts Drives: 2011 E92 M3 6MT Join Date: Aug 2010 Location: Katy, TX iTrader: (1)	Keep the Akra Evo as is. IMO it is one of the best sounding, best looking, lightest and quietest aftermarket exhaust out there. I love mine! __________________ Akra GT4 / MS Stage 2 / MS UDP / BPM Tune / KW CS / H&R Sways / TMS Delrin / ST 380/355 BBK / Cantrell 2.5" Ducts / SR34 Pads / Apex Arc-8 / Hoosier R7's / Mode GT4 Splitter / GT4 Canards / APR GT-250 Wing / Cantrell Half Cage / Recaro Pro Racer / Schroth Profi II-6 / BMW Alcantera Wheel / Cool Shirt / ESS Fire Supp / Solo DL
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01-16-2013, 10:03 AM	#18
IMG 1391 Rep 7,772 Posts Drives: E90 M3, E60 M5, F90 M5CS, M4 C Join Date: Feb 2008 Location: Location iTrader: (6)	Akra is very quiet thats why i got one.Cant get quieter than that !
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