BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
 
ESS Tuning
Post Reply
 
Thread Tools Search this Thread
      10-10-2010, 10:53 PM   #1
D.T.
Private
3
Rep
88
Posts

Drives: E92 M3
Join Date: Aug 2010
Location: South SF

iTrader: (0)

Akrapovic exhaust...

Heyy, I currently have an e92 m3 coupe with the slip on Akrapovic exhaust with the rear section only. However, I'm looking to make the sound my car louder yet not too over the top...I was thinking of getting rid of the cats or the resinator. I've been told to get the akrapovic x-pipe, however, I personally do not prefer the outcome of the sound. Could someone please help me with ideas for a new exhaust set up, or even recommend me some aftermarket x-pipes or cats...

Thank you so much for your help
Appreciate 0
      10-10-2010, 11:31 PM   #2
madjmonkee
Gold Member
madjmonkee's Avatar
0
Rep
36
Posts

Drives: 2009 E90 DCT
Join Date: Aug 2008
Location: Frisco

iTrader: (1)

Very satisfied with my Akra Evo. I upgraded from slip-on... Love it!
Appreciate 0
      10-11-2010, 12:01 AM   #3
FrenchBoy
Major
FrenchBoy's Avatar
France
47
Rep
1,376
Posts

Drives: '09 E90 M3
Join Date: Mar 2006
Location: Seattle, WA

iTrader: (0)

I also have the Akra Evo and I am extremely satisfied with the sound and feel when I drive. I was looking for something more aggressive and purposeful than stock but not over the top and the Akrapovic fits the bill perfectly. It is much deeper and bassier than stock but still quite livable IMO.
__________________

2009 E90 M3 | SG | FR | 6Speed | Akrapovic Evo | JRZ RS1 | StopTech Trophy | Cantrell Brake Ducts
Appreciate 0
      10-11-2010, 03:01 AM   #4
D.T.
Private
3
Rep
88
Posts

Drives: E92 M3
Join Date: Aug 2010
Location: South SF

iTrader: (0)

How would you describe the difference in sound between the slip on and the evolution?
Appreciate 0
      10-11-2010, 06:20 AM   #5
MRE90M3
"its baby blue m3 to you sir."
United_States
10
Rep
440
Posts

Drives: Silverstone Metallic II
Join Date: Jul 2009
Location: Upland California

iTrader: (2)

Send a message via AIM to MRE90M3 Send a message via MSN to MRE90M3 Send a message via Skype™ to MRE90M3
When i had the Evolution system, it had no drone. To me, it was sort of silent.. so i swapped out the evolution to the GT4. i havnt heard it yet, but im assuming its about 20-30 percent more since four cats has been removed. Im planning to go back to LA this week, when i get in my car i will make videos and capture the sound.

If you want Louder go with the Akra GT4 but if you just want some mildly mannered, go with the Evolution.

glwc
Appreciate 0
      10-11-2010, 01:15 PM   #6
EAS
BimmerPost Supporting Vendor
EAS's Avatar
233
Rep
5,695
Posts


Drives: VF620 M3
Join Date: Mar 2010
Location: Anaheim, CA

iTrader: (10)

The Akrapovic Evolution System that we had installed on one of our customers' car sounded very aggressive when you're on the throttle, but not too loud where it would annoy you when cruising around town.
__________________
european auto source (eas)
email: info@europeanautosource.com web: www.europeanautosource.com
tel 866.669.0705 | ca: 714.369.8524 | fax: 714.908.1796


Blog | Facebook | YouTube | Flickr | Twitter
Appreciate 0
      10-11-2010, 02:57 PM   #7
madjmonkee
Gold Member
madjmonkee's Avatar
0
Rep
36
Posts

Drives: 2009 E90 DCT
Join Date: Aug 2008
Location: Frisco

iTrader: (1)

Quote:
Originally Posted by D.T. View Post
How would you describe the difference in sound between the slip on and the evolution?
It's a little louder, and more exotic sounding compared with slip-on
Appreciate 0
      10-11-2010, 03:13 PM   #8
STALKER
Brigadier General
52
Rep
3,720
Posts

Drives: 997.2 GT3, Golf R
Join Date: Feb 2009
Location: Toronto, ON

iTrader: (5)

I would say its about 20-25% louder then the slip on. In the lower RPM range is where it has more bass.
__________________

2013 991 C4S-SOLD
2012 Golf R
2010 GT3
Appreciate 0
      10-12-2010, 02:12 AM   #9
D.T.
Private
3
Rep
88
Posts

Drives: E92 M3
Join Date: Aug 2010
Location: South SF

iTrader: (0)

Thanks alot for the help guys. So, I'm guessing taking off the resinators isn't the right way to go then? I will try to get an evolution or the gt4, but it costs much more than the slip on thats the only reason, thats keeping me from replacing the whole system. btw whats the price range for the gt4?

thx
Appreciate 0
      10-12-2010, 07:20 AM   #10
dawgdog
Colonel
31
Rep
2,184
Posts

Drives: 2015 M3, 2010 GT3RS
Join Date: Oct 2006
Location: Seattle, Wa.

iTrader: (0)

I have the Akra evolution and can't imagine wanting louder. Would be painful to the ears. The Akra is at the upper limit of what I want. I get lots of compliments at the track.
__________________
2015 f80 M3, 2010 GT3RS
Appreciate 0
      10-12-2010, 11:53 AM   #11
herosfc
Private First Class
herosfc's Avatar
United_States
2
Rep
100
Posts

Drives: E92 Silverstone DCT
Join Date: Aug 2008
Location: Los Angeles

iTrader: (0)

I started with the slip-on as well. Upgraded to the full system after a couple months. I LOVE IT! IMO, it sounds way better.

Gotten a lot of compliments on the street. My favorite: "What do have on that car? It sounds mean as shit!" That being said, it's not over the top loud.
Appreciate 0
      10-25-2010, 12:59 PM   #12
ES_TRADER
Colonel
105
Rep
2,868
Posts

Drives: 328i, 335i, M3, 535i, X5, 36M
Join Date: Oct 2010
Location: OC

iTrader: (3)

Garage List
2014 Ford Raptor  [0.00]
2012 328i E92  [5.00]
2013 X5  [0.00]
2013 335i F30  [4.00]
1990 Toyota Previa  [0.00]
1997 E36 M3  [5.00]
2011 E92 M3  [0.00]
2011 535i  [0.00]
IT definitely looks great but my concern is that the finish of the tips will change to a nasty bronze color over time? Does anyone know? or will it still maintain the original finish and look after a simple wash? I saw some videos how it was changing color but not sure about the tips. thx
Appreciate 0
      10-25-2010, 01:07 PM   #13
fe55
Private
0
Rep
98
Posts

Drives: E92 M3 DKG
Join Date: Jul 2008
Location: Edmonton,

iTrader: (0)

You are correct about the color change. I have now had mine for a year and the tips have changed color and are kind of yellowish. I don't really know how to change that other than changing the tips.
Appreciate 0
      10-25-2010, 04:10 PM   #14
kitw
Colonel
kitw's Avatar
96
Rep
2,723
Posts

Drives: 2011 E92 Jet Black M3 (#6!)
Join Date: Jun 2007
Location: Bay Area, CA

iTrader: (15)

Quote:
Originally Posted by richpuer View Post
IT definitely looks great but my concern is that the finish of the tips will change to a nasty bronze color over time? Does anyone know? or will it still maintain the original finish and look after a simple wash? I saw some videos how it was changing color but not sure about the tips. thx

When you pound on the car, Titanium can definite heat up to the point where it changes color.

Just do some track days, most of the guys who've tracked the Akrapovic have ended up with a pretty blue/purple color to replace the bronze.

Personally, I like the bronze color. Gives the exhaust character.
Appreciate 0
      10-25-2010, 09:46 PM   #15
ES_TRADER
Colonel
105
Rep
2,868
Posts

Drives: 328i, 335i, M3, 535i, X5, 36M
Join Date: Oct 2010
Location: OC

iTrader: (3)

Garage List
2014 Ford Raptor  [0.00]
2012 328i E92  [5.00]
2013 X5  [0.00]
2013 335i F30  [4.00]
1990 Toyota Previa  [0.00]
1997 E36 M3  [5.00]
2011 E92 M3  [0.00]
2011 535i  [0.00]
Quote:
Originally Posted by kitw View Post
When you pound on the car, Titanium can definite heat up to the point where it changes color.

Just do some track days, most of the guys who've tracked the Akrapovic have ended up with a pretty blue/purple color to replace the bronze.

Personally, I like the bronze color. Gives the exhaust character.
do u have any pics of these tips on cars that have been driven for a while? id like to see what the difference is from newly installed.
Appreciate 0
      10-26-2010, 06:30 AM   #16
gasterus
Private First Class
gasterus's Avatar
2
Rep
185
Posts

Drives: M6
Join Date: Apr 2009
Location: Indonesia

iTrader: (0)

Quote:
Originally Posted by MRE90M3 View Post
When i had the Evolution system, it had no drone. To me, it was sort of silent.. so i swapped out the evolution to the GT4. i havnt heard it yet, but im assuming its about 20-30 percent more since four cats has been removed. Im planning to go back to LA this week, when i get in my car i will make videos and capture the sound.

If you want Louder go with the Akra GT4 but if you just want some mildly mannered, go with the Evolution.

glwc
I've been considering the GT4. I've heard my friend's evolution, love the tone but i wanted something more aggressive sounding. Please post a vidclip of the GT4 if you have the chance to. Thxs.
__________________
07 M6 blk/blk, Racing Dynamics RS58 stroker with custom ECU tune, Primary cat bypassed+Akrapovic Evolution exhaust, BMC air filters, RPI air scoops, H&R springs, Dinan FRC & rear sway bar, 20" AC Schnitzer V

08 E92 M3 sparkling graphite/red, Competition pack, Innotech exhaust
Appreciate 0
      10-26-2010, 08:47 AM   #17
Jason@Renn-Spec
Major
Jason@Renn-Spec's Avatar
31
Rep
1,312
Posts

Drives: A POS
Join Date: Jul 2009
Location: La Puente, CA

iTrader: (3)

Here is a video of a GT4 system that we installed on a customer's car.
Appreciate 0
      10-26-2010, 09:27 AM   #18
J08M3
Major General
J08M3's Avatar
United_States
107
Rep
6,009
Posts

Drives: 2011 M3 COUPE
Join Date: May 2008
Location: NEW YORK

iTrader: (8)

too raspy and hollow sounding in my opinion
__________________
Appreciate 0
      10-26-2010, 10:31 AM   #19
elmariachi
Major
elmariachi's Avatar
48
Rep
1,323
Posts

Drives: BMW ///M Division
Join Date: Jan 2007
Location: Singapore

iTrader: (1)

Quote:
Originally Posted by J08M3 View Post
too raspy and hollow sounding in my opinion
Almost all the exhaust systems that lose the resonators sound like that. I bet if the GT4 system was cat less but still had the resonators, it will sound mean as hell...
__________________

2008 E92 ///M3 Alpine White M-DCT| Novillo-Black Interior| Carbon Fibre Roof| Premium Sound System| EDC| 19's Advan RS w/ Michelin PS2 Cups| iPod| GruppeM Air Intake| GruppeM Steel Braided Lines|Ferodo DS2500 Pads| Akrapovic Full Header-Back Titanium Exhaust| 6000K Philips D1S| 3M Tints|
Appreciate 0
      10-26-2010, 03:11 PM   #20
ES_TRADER
Colonel
105
Rep
2,868
Posts

Drives: 328i, 335i, M3, 535i, X5, 36M
Join Date: Oct 2010
Location: OC

iTrader: (3)

Garage List
2014 Ford Raptor  [0.00]
2012 328i E92  [5.00]
2013 X5  [0.00]
2013 335i F30  [4.00]
1990 Toyota Previa  [0.00]
1997 E36 M3  [5.00]
2011 E92 M3  [0.00]
2011 535i  [0.00]
Does the evolution exhaust REALLY add 24 hp? can people who have it feel a noticeable difference? enough to warrant the 6k price tag? some people will slap on an intake and magically the car feels faster....im wondering if its one of those psychological things like how my car feels faster right after i wash it... or is it just marketing hype?

i would love to buy this but im afraid it might not be worth the hefty price...you can get anything with good sound for half that.
Appreciate 0
      10-26-2010, 04:23 PM   #21
ssabripo
HALA MADRID!
ssabripo's Avatar
United_States
66
Rep
2,174
Posts

Drives: camels & donkeys
Join Date: Jul 2005
Location: Plantation, Fl

iTrader: (6)

Send a message via AIM to ssabripo
Quote:
Originally Posted by richpuer View Post
Does the evolution exhaust REALLY add 24 hp? can people who have it feel a noticeable difference? enough to warrant the 6k price tag? some people will slap on an intake and magically the car feels faster....im wondering if its one of those psychological things like how my car feels faster right after i wash it... or is it just marketing hype?

i would love to buy this but im afraid it might not be worth the hefty price...you can get anything with good sound for half that.
it's a cost vs personal goals issue. Akra makes beautiful exhausts, and have great workmanship, but as you suggested, close to $6k for 24hp.... compare that to a little over $8k for a supercharger kit that gives you over 100hp.

obviously there is more than just price and power, but it really boils down to what your goals are.
__________________

__________________________________________________ ____________
e90 M3, Interlagos Blue / M individual two-tone, ZCP, ZP2, ZCV, DCT, ED.
Appreciate 0
      10-27-2010, 05:29 AM   #22
Templar
Lieutenant Colonel
Templar's Avatar
United_States
84
Rep
1,846
Posts

Drives: 2011 E92 M3
Join Date: Feb 2009
Location: One of the coasts...

iTrader: (1)

Garage List
2011 BMW M3  [5.00]
Checking this out too... I like the Akra system but I need to save up for something like that...

Otherwise I'd be going with the Eisenmann race... I like the black one :P
__________________
'11 BMW E92 ///M3 - ZCP and DCT
'15 Ford F-250 - Lariat, 6.7 Powerstroke Turbo-diesel
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 01:28 AM.




m3post
m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST