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
 
INDustry distribution
Post Reply
 
Thread Tools Search this Thread
      01-31-2012, 10:28 AM   #1
Rekrul
Captain
Rekrul's Avatar
20
Rep
799
Posts

 
Drives: Space Gray e92 M3
Join Date: Aug 2011
Location: Purgatory

iTrader: (1)

AA catless Xpipe vs any other catless Xpipe?

I know the AA is dual resonated. Doesn't seem to get much love on here, how does it compare to other catless Xpipes? Namely Gintani?
Appreciate 0
      01-31-2012, 10:36 AM   #2
pbonsalb
Lieutenant Colonel
21
Rep
1,796
Posts

 
Drives: 08 E90 M3, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: Concord, NH

iTrader: (3)

I like the way the AA pipe has V-Band clamps for the primary cat delete. You can make or buy primary cat inserts if you later decide you want the cat option for inspection purposes.

You could add this to other catless x-pipes, but more work is involved since the V-Band clamp is not in place and the other makers do not offer the cat insert pipe option. It would be a DIY job.
Appreciate 0
      01-31-2012, 10:51 AM   #3
Rekrul
Captain
Rekrul's Avatar
20
Rep
799
Posts

 
Drives: Space Gray e92 M3
Join Date: Aug 2011
Location: Purgatory

iTrader: (1)

Quote:
Originally Posted by pbonsalb View Post
I like the way the AA pipe has V-Band clamps for the primary cat delete. You can make or buy primary cat inserts if you later decide you want the cat option for inspection purposes.

You could add this to other catless x-pipes, but more work is involved since the V-Band clamp is not in place and the other makers do not offer the cat insert pipe option. It would be a DIY job.
Hmm... interesting. I guess that is kind of nice, though I'll probably just leave my stock piper in my garage. I'm just trying to figure out how loud it really is.. compared to others. Is the challenge dual? Fabspeed?
Appreciate 0
      01-31-2012, 11:01 AM   #4
M3DCTBT
First Lieutenant
6
Rep
368
Posts

 
Drives: E92 M3
Join Date: May 2011
Location: New England

iTrader: (2)

Quote:
Originally Posted by Rekrul
I know the AA is dual resonated. Doesn't seem to get much love on here, how does it compare to other catless Xpipes? Namely Gintani?
Quads sound better and drone less.

Gintani or borla quads are nice.
Appreciate 0
      01-31-2012, 07:15 PM   #5
Rekrul
Captain
Rekrul's Avatar
20
Rep
799
Posts

 
Drives: Space Gray e92 M3
Join Date: Aug 2011
Location: Purgatory

iTrader: (1)

Quote:
Originally Posted by M3DCTBT View Post
Quads sound better and drone less.

Gintani or borla quads are nice.


Hmmm. Any other input? I have an Akra Slip on btw. I DO NOT want rasp or drone lol
Appreciate 0
      01-31-2012, 07:30 PM   #6
tom @ eas
BimmerPost Supporting Vendor
tom @ eas's Avatar
United_States
328
Rep
10,632
Posts


 
Drives: BMW
Join Date: Nov 2005
Location: Anaheim, CA

iTrader: (13)

Garage List
Quote:
Originally Posted by Rekrul View Post
Hmmm. Any other input? I have an Akra Slip on btw. I DO NOT want rasp or drone lol
We've installed a few Challenge/Akra combos here in the shop - been very happy with fitment and sound.

The Akrapovic X-pipe would my choice since you already have the SlipOn system. If within a particular budget, the Challenge Race X-Pipe (stainless) would be a close second.
__________________
Appreciate 0
      01-31-2012, 08:25 PM   #7
Rekrul
Captain
Rekrul's Avatar
20
Rep
799
Posts

 
Drives: Space Gray e92 M3
Join Date: Aug 2011
Location: Purgatory

iTrader: (1)

Quote:
Originally Posted by tom @ eas View Post
We've installed a few Challenge/Akra combos here in the shop - been very happy with fitment and sound.

The Akrapovic X-pipe would my choice since you already have the SlipOn system. If within a particular budget, the Challenge Race X-Pipe (stainless) would be a close second.

Is the challenge dual or quad resonated? Thank you for your input!
Appreciate 0
      01-31-2012, 08:27 PM   #8
tom @ eas
BimmerPost Supporting Vendor
tom @ eas's Avatar
United_States
328
Rep
10,632
Posts


 
Drives: BMW
Join Date: Nov 2005
Location: Anaheim, CA

iTrader: (13)

Garage List
Quote:
Originally Posted by Rekrul View Post
Is the challenge dual or quad resonated? Thank you for your input!
Challenge is dual resonated.
__________________
Appreciate 0
      02-01-2012, 10:49 AM   #9
M3DCTBT
First Lieutenant
6
Rep
368
Posts

 
Drives: E92 M3
Join Date: May 2011
Location: New England

iTrader: (2)

not impressed with any challenge x pipe as far as power. Akra has no drone, all other exhausts seem too. Start there.
Appreciate 0
      02-01-2012, 11:31 AM   #10
Rekrul
Captain
Rekrul's Avatar
20
Rep
799
Posts

 
Drives: Space Gray e92 M3
Join Date: Aug 2011
Location: Purgatory

iTrader: (1)

Quote:
Originally Posted by M3DCTBT View Post
not impressed with any challenge x pipe as far as power. Akra has no drone, all other exhausts seem too. Start there.
I have the slip on. Looking to pick up an xpipe. What are your impressions of the AA xpipe in terms of power?
Appreciate 0
      02-01-2012, 01:51 PM   #11
ModBargains III
Lieutenant
United_States
4
Rep
423
Posts

 
Drives: E92 335i, 135i, E46 M3, 540i
Join Date: Sep 2011
Location: 1721 E. Lambert Rd. Unit C, 90631 La Habra, CA

iTrader: (0)

Quote:
Originally Posted by M3DCTBT View Post
not impressed with any challenge x pipe as far as power. Akra has no drone, all other exhausts seem too. Start there.
Have you checked out Fabspeed's x-pipe yet?
__________________
Appreciate 0
      02-01-2012, 02:42 PM   #12
Merked M3
First Lieutenant
Merked M3's Avatar
United_States
4
Rep
356
Posts

 
Drives: E90 M3 6MT
Join Date: Apr 2011
Location: Sunnyvale, CA

iTrader: (0)

Do the resonators restrict power in any way? Or is it so minimal it doesnt even matter?

Because i wonder what a dyno would say on a Challenge race vs race+
__________________
2008 E90 M3 6-MT - Sold but not forgotten - amazing car

The next car, my Porsche Cayman S
Appreciate 0
      02-01-2012, 02:53 PM   #13
dcgolfdr
Wheelsucker
dcgolfdr's Avatar
United_States
18
Rep
1,026
Posts

 
Drives: M3 and a truck
Join Date: Oct 2008
Location: Arlington, VA

iTrader: (11)

The Gintani is a good piece, had it on the car for 2 years, fit is perfect, certainly increased volume but did not add any drone. Made the car sound mean. Downsides are the smell, but you get used to it, and when running it hard on the track, having to clean the rear of the car, with AW it would turn beige. With, SG, it shouldn't be too bad.
Appreciate 0
      02-01-2012, 03:08 PM   #14
rjd598
Brigadier General
rjd598's Avatar
United_States
55
Rep
4,644
Posts

 
Drives: 10' M3
Join Date: Jan 2009
Location: San Diego,CA

iTrader: (2)

Garage List
2010 BMW M3  [4.50]
1999 BMW M3  [0.00]
+1 on gintani
__________________
Appreciate 0
      02-01-2012, 03:53 PM   #15
Rekrul
Captain
Rekrul's Avatar
20
Rep
799
Posts

 
Drives: Space Gray e92 M3
Join Date: Aug 2011
Location: Purgatory

iTrader: (1)

Quote:
Originally Posted by dcgolfdr View Post
The Gintani is a good piece, had it on the car for 2 years, fit is perfect, certainly increased volume but did not add any drone. Made the car sound mean. Downsides are the smell, but you get used to it, and when running it hard on the track, having to clean the rear of the car, with AW it would turn beige. With, SG, it shouldn't be too bad.
Is the gintanti dual or quad resonated?
Appreciate 0
      02-01-2012, 03:57 PM   #16
baarii
Major
baarii's Avatar
United_States
16
Rep
1,116
Posts

 
Drives: ..
Join Date: Sep 2008
Location: I-66

iTrader: (8)

Quote:
Originally Posted by Rekrul View Post
Is the gintanti dual or quad resonated?
They make both, dual and quad.
Appreciate 0
      02-01-2012, 04:07 PM   #17
Rekrul
Captain
Rekrul's Avatar
20
Rep
799
Posts

 
Drives: Space Gray e92 M3
Join Date: Aug 2011
Location: Purgatory

iTrader: (1)

Quote:
Originally Posted by baarii View Post
They make both, dual and quad.
What are your thoughts on the AA xpipe?
Appreciate 0
      02-01-2012, 04:13 PM   #18
baarii
Major
baarii's Avatar
United_States
16
Rep
1,116
Posts

 
Drives: ..
Join Date: Sep 2008
Location: I-66

iTrader: (8)

Quote:
Originally Posted by Rekrul View Post
What are your thoughts on the AA xpipe?
Have not tried it. I have the Gintani Dual, I liked it a lot.
Appreciate 0
      02-01-2012, 04:58 PM   #19
persian54
Lieutenant General
persian54's Avatar
United_States
285
Rep
15,812
Posts

 
Drives: SL550. Prev: E93 M3/335i/Z435i
Join Date: Jun 2009
Location: The Valley, SoCal

iTrader: (291)

I had an AA Xpipe with stock rear

now i Have a full akra

I would say, pick up an akra xpipe

I believe EAS should have the Akra in stock
Appreciate 0
      02-01-2012, 05:03 PM   #20
Rekrul
Captain
Rekrul's Avatar
20
Rep
799
Posts

 
Drives: Space Gray e92 M3
Join Date: Aug 2011
Location: Purgatory

iTrader: (1)

Quote:
Originally Posted by persian54 View Post
I had an AA Xpipe with stock rear

now i Have a full akra

I would say, pick up an akra xpipe

I believe EAS should have the Akra in stock
I'm cheap. Id prefer to buy second hand xpipes lol... otherwise I'd do this as I have the slip on.
Appreciate 0
      02-01-2012, 05:29 PM   #21
yomny
Second Lieutenant
yomny's Avatar
United_States
4
Rep
200
Posts

 
Drives: '13 335is 6spd
Join Date: Jan 2010
Location: South Florida

iTrader: (0)

I just instaled AA catless x pipe today and i must say the sound is amazing, that of course is my opinion and its a subjective one. It sounds stock unless stepped on hard which then produces an exotic ferrari/rasp type of note, not very raspy but just right for me. I do get this weird small noise, like a humming at certain spots on the rpm range. It sounds like when you wind your finger tip over a glass just a lot deeper. This doesn't happen throughout a rpm range just on a given rpm, mine is at 3900. I'm very picky and paranoid about noises so im sure most people wont notice, i also have the rear stock exhaust so that may complicate the sound, im sure with a full exhust this would sound just great.



Last edited by yomny; 02-01-2012 at 05:46 PM.
Appreciate 0
      02-01-2012, 05:45 PM   #22
Rekrul
Captain
Rekrul's Avatar
20
Rep
799
Posts

 
Drives: Space Gray e92 M3
Join Date: Aug 2011
Location: Purgatory

iTrader: (1)

Quote:
Originally Posted by yomny View Post
I just instaled AA catless x pipe today and i must say the sound is amazing, that of course is my opinion and its a subjective one. It sounds stock unless stepped on hard which then produces an exotic ferrari/rasp type of note, not very raspy but just right for me. I do get this weird small noise, like a humming at certain spots on the rpm range. It sounds like when you wind your finger tip over a glass just a lot deeper. This isn't drone, it doesn't happen throughout an rpm range just on a given rpm, mine is at 3900. I'm very picky and paranoid about noises so im sure most people wont notice, i also have the rear stock exhaust so that may complicate the sound, im sure with a full exhust this would sound just great.


Very nice. Just what I needed to hear. Thank you my friend!
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 -5. The time now is 11:58 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, 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