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
 
BPM Sport
Post Reply
 
Thread Tools Search this Thread
      12-20-2012, 12:42 AM   #23
Jbook
Major
33

 
Jbook's Avatar
 
Drives: '11 ESS E90 M3
Join Date: Sep 2010
Location: South Bay Area


Posts: 1,290
iTrader: (20)

Garage List
2011 BMW E90 M3  [4.72]
Quote:
Originally Posted by alofoque View Post
I have the ACM mod with aa race xpipe and its loud. Akra is much quieter and a totally different sound. I'm in the market for an akra to pair with my aa xpipe myself. The sound under heavy accelaration is glorious and f1 like but i must be getting old because I want something more low key. Windows up its perfect you can have a conversation no problem but windows down its pretty loud.

OP, I think you'll be the first with this combination of exhaust.
I hope so and I hope it's amazing!
__________________
ESS VT2-625 w/ DCT Software | Alekshop Oil Cooler | Awron Gauge | 19" BBS FI | Ohlins R&T w/ Vorshlag Camber Plates | Alekshop Subframe Bushings | RD Sport Sway Bars F&R | Dinan Strut Braces & Pedals | Brembo GT 380 F&R w/ Endless Pads | Akrapovic GT4 | Vorsteiner GTS-V Lip | 3D Design Diffuser | Platte Forme CF Side Skirt Extensions | BMW Performance Seats, CF Spoiler, CF Mirror Covers & Steering Wheel
Appreciate 0
      12-20-2012, 11:27 AM   #24
Chriskm3
Colonel
Canada
43

 
Chriskm3's Avatar
 
Drives: M3
Join Date: Jul 2012
Location: Toronto


Posts: 2,218
iTrader: (4)

Quote:
Originally Posted by alofoque View Post
I have the ACM mod with aa race xpipe and its loud. Akra is much quieter and a totally different sound. I'm in the market for an akra to pair with my aa xpipe myself. The sound under heavy accelaration is glorious and f1 like but i must be getting old because I want something more low key. Windows up its perfect you can have a conversation no problem but windows down its pretty loud.

OP, I think you'll be the first with this combination of exhaust.
Assuming your Race xpipe means catless then the sounds is totally different from hfc xpipe. The acm mod bypasses the chambers so it's the louder mode of the two. So a combination of straight pipe without cats and a cut out muffler will be very loud. Unless you have the non perforated pipe mod then it should tone it down. Is there a way you can post a sound clip. It will be nice to compare.
Appreciate 0
      12-20-2012, 01:47 PM   #25
Jbook
Major
33

 
Jbook's Avatar
 
Drives: '11 ESS E90 M3
Join Date: Sep 2010
Location: South Bay Area


Posts: 1,290
iTrader: (20)

Garage List
2011 BMW E90 M3  [4.72]
Quote:
Originally Posted by Chriskm3 View Post
Assuming your Race xpipe means catless then the sounds is totally different from hfc xpipe. The acm mod bypasses the chambers so it's the louder mode of the two. So a combination of straight pipe without cats and a cut out muffler will be very loud. Unless you have the non perforated pipe mod then it should tone it down. Is there a way you can post a sound clip. It will be nice to compare.
Agreed. My tone of my exhaust completely changed when I added the HFC to the previously catless x-pipe. It went from extremely loud and raw sounding to a deeper more refined sound.

I never considered the OEM exhaust mod, but there is definitely a difference in sound between the different "styles".
__________________
ESS VT2-625 w/ DCT Software | Alekshop Oil Cooler | Awron Gauge | 19" BBS FI | Ohlins R&T w/ Vorshlag Camber Plates | Alekshop Subframe Bushings | RD Sport Sway Bars F&R | Dinan Strut Braces & Pedals | Brembo GT 380 F&R w/ Endless Pads | Akrapovic GT4 | Vorsteiner GTS-V Lip | 3D Design Diffuser | Platte Forme CF Side Skirt Extensions | BMW Performance Seats, CF Spoiler, CF Mirror Covers & Steering Wheel
Appreciate 0
      12-20-2012, 08:55 PM   #26
Chriskm3
Colonel
Canada
43

 
Chriskm3's Avatar
 
Drives: M3
Join Date: Jul 2012
Location: Toronto


Posts: 2,218
iTrader: (4)

I'm waiting for your review on akra. I'm holding off with my current muffler sale and acm mod.
Appreciate 0
      12-21-2012, 12:42 AM   #27
Jbook
Major
33

 
Jbook's Avatar
 
Drives: '11 ESS E90 M3
Join Date: Sep 2010
Location: South Bay Area


Posts: 1,290
iTrader: (20)

Garage List
2011 BMW E90 M3  [4.72]
Quote:
Originally Posted by Chriskm3 View Post
I'm waiting for your review on akra. I'm holding off with my current muffler sale and acm mod.
Tomorrow is install day! Will do a write up and get some vids ASAP
__________________
ESS VT2-625 w/ DCT Software | Alekshop Oil Cooler | Awron Gauge | 19" BBS FI | Ohlins R&T w/ Vorshlag Camber Plates | Alekshop Subframe Bushings | RD Sport Sway Bars F&R | Dinan Strut Braces & Pedals | Brembo GT 380 F&R w/ Endless Pads | Akrapovic GT4 | Vorsteiner GTS-V Lip | 3D Design Diffuser | Platte Forme CF Side Skirt Extensions | BMW Performance Seats, CF Spoiler, CF Mirror Covers & Steering Wheel
Appreciate 0
      12-21-2012, 07:50 PM   #28
Jbook
Major
33

 
Jbook's Avatar
 
Drives: '11 ESS E90 M3
Join Date: Sep 2010
Location: South Bay Area


Posts: 1,290
iTrader: (20)

Garage List
2011 BMW E90 M3  [4.72]
Due to a mix-up by Akrapovic (sent me the x-pipe instead of mufflers), the new setup will be getting thrown on at the same time as the SC...
__________________
ESS VT2-625 w/ DCT Software | Alekshop Oil Cooler | Awron Gauge | 19" BBS FI | Ohlins R&T w/ Vorshlag Camber Plates | Alekshop Subframe Bushings | RD Sport Sway Bars F&R | Dinan Strut Braces & Pedals | Brembo GT 380 F&R w/ Endless Pads | Akrapovic GT4 | Vorsteiner GTS-V Lip | 3D Design Diffuser | Platte Forme CF Side Skirt Extensions | BMW Performance Seats, CF Spoiler, CF Mirror Covers & Steering Wheel
Appreciate 0
      12-21-2012, 08:26 PM   #29
Chriskm3
Colonel
Canada
43

 
Chriskm3's Avatar
 
Drives: M3
Join Date: Jul 2012
Location: Toronto


Posts: 2,218
iTrader: (4)

Lol.
Appreciate 0
      12-21-2012, 08:44 PM   #30
Jbook
Major
33

 
Jbook's Avatar
 
Drives: '11 ESS E90 M3
Join Date: Sep 2010
Location: South Bay Area


Posts: 1,290
iTrader: (20)

Garage List
2011 BMW E90 M3  [4.72]
Quote:
Originally Posted by Chriskm3 View Post
Lol.
Not my initial reaction hahaha. At least all my friends and family will get their xmas presents on time
__________________
ESS VT2-625 w/ DCT Software | Alekshop Oil Cooler | Awron Gauge | 19" BBS FI | Ohlins R&T w/ Vorshlag Camber Plates | Alekshop Subframe Bushings | RD Sport Sway Bars F&R | Dinan Strut Braces & Pedals | Brembo GT 380 F&R w/ Endless Pads | Akrapovic GT4 | Vorsteiner GTS-V Lip | 3D Design Diffuser | Platte Forme CF Side Skirt Extensions | BMW Performance Seats, CF Spoiler, CF Mirror Covers & Steering Wheel
Appreciate 0
      12-21-2012, 08:47 PM   #31
Chriskm3
Colonel
Canada
43

 
Chriskm3's Avatar
 
Drives: M3
Join Date: Jul 2012
Location: Toronto


Posts: 2,218
iTrader: (4)

Quote:
Originally Posted by Jbook View Post
Not my initial reaction hahaha. At least all my friends and family will get their xmas presents on time
Lol. Mistakes are so common and expected these days. Specially with mail in orders. It's like no one takes their job seriously.
Appreciate 0
      12-21-2012, 09:02 PM   #32
Jbook
Major
33

 
Jbook's Avatar
 
Drives: '11 ESS E90 M3
Join Date: Sep 2010
Location: South Bay Area


Posts: 1,290
iTrader: (20)

Garage List
2011 BMW E90 M3  [4.72]
Quote:
Originally Posted by Chriskm3 View Post
Lol. Mistakes are so common and expected these days. Specially with mail in orders. It's like no one takes their job seriously.
Yup, not mad just kinda in a "WTF" state. Since they refused to sell me a muffler without tips I would assume that they would get this order correct instead of sending the x-pipe and a set of tips.
__________________
ESS VT2-625 w/ DCT Software | Alekshop Oil Cooler | Awron Gauge | 19" BBS FI | Ohlins R&T w/ Vorshlag Camber Plates | Alekshop Subframe Bushings | RD Sport Sway Bars F&R | Dinan Strut Braces & Pedals | Brembo GT 380 F&R w/ Endless Pads | Akrapovic GT4 | Vorsteiner GTS-V Lip | 3D Design Diffuser | Platte Forme CF Side Skirt Extensions | BMW Performance Seats, CF Spoiler, CF Mirror Covers & Steering Wheel
Appreciate 0
      12-22-2012, 06:41 PM   #33
Chriskm3
Colonel
Canada
43

 
Chriskm3's Avatar
 
Drives: M3
Join Date: Jul 2012
Location: Toronto


Posts: 2,218
iTrader: (4)

Omg you were so right. I put the original muffler back on the car but I can't stand how ugly the muffler looks. Thanks for bringing that up to my attention. ;(.
Appreciate 0
      01-04-2013, 10:04 PM   #34
Jbook
Major
33

 
Jbook's Avatar
 
Drives: '11 ESS E90 M3
Join Date: Sep 2010
Location: South Bay Area


Posts: 1,290
iTrader: (20)

Garage List
2011 BMW E90 M3  [4.72]
Akra slip-on is on the car now and sounds great paired with the AA HFC x-pipe!! Couldn't be happier with the sound. If I had to describe it I would say: A little bassy down low (not even close to how bassy the AA was), REALLY smooth feeling (more smooth on acceleration than either the Dinan or AA), quiet while cruising (about the same as Dinan, maybe a little louder), and aggressive when stomped on (right in between AA and Dinan, but the sound is AMAZING).

Will for sure post videos up after some spirited driving this weekend
__________________
ESS VT2-625 w/ DCT Software | Alekshop Oil Cooler | Awron Gauge | 19" BBS FI | Ohlins R&T w/ Vorshlag Camber Plates | Alekshop Subframe Bushings | RD Sport Sway Bars F&R | Dinan Strut Braces & Pedals | Brembo GT 380 F&R w/ Endless Pads | Akrapovic GT4 | Vorsteiner GTS-V Lip | 3D Design Diffuser | Platte Forme CF Side Skirt Extensions | BMW Performance Seats, CF Spoiler, CF Mirror Covers & Steering Wheel

Last edited by Jbook; 01-05-2013 at 01:34 AM.
Appreciate 0
      01-05-2013, 10:04 AM   #35
Longboarder
Brigadier General
115

 
Drives: 2013 e92 M3
Join Date: Dec 2006
Location: Monarch Beach


Posts: 3,765
iTrader: (1)

Garage List
2011 997.2 Turbo S  [4.71]
2013 e92 M3  [4.55]
2013 WRX STi  [4.00]
2013 BMW X5  [0.00]
Quote:
Originally Posted by Jbook View Post
Akra slip-on is on the car now and sounds great paired with the AA HFC x-pipe!! Couldn't be happier with the sound. If I had to describe it I would say: A little bassy down low (not even close to how bassy the AA was), REALLY smooth feeling (more smooth on acceleration than either the Dinan or AA), quiet while cruising (about the same as Dinan, maybe a little louder), and aggressive when stomped on (right in between AA and Dinan, but the sound is AMAZING).

Will for sure post videos up after some spirited driving this weekend
Awesome! We have a similar set up. Instead of the HFC X, I have the MRF Engineering X pipe but also the Akra slip + ESS 625. The blower will make your car sound a little different at idle from the engine bay (kinda like a faint jet engine sound). Normal driving probably wont sound any different than now but when you step on it with the blower, it changes the dynamics and while it won't be any louder, it rev's soooo fast that it will just seem very different.

I'm looking forward to your impressions once the blower is installed. What's the timing estimate on that?
__________________
Daily: 2013 e92 M3 DCT / ESS VT2 650 S/C / Akrapovic Evolution / StopTech BBK
Track/Airstrip: 2011 997.2 Turbo S PDK / 725 HP / BBi suspension build
Beater: 2013 X5 3.5sport
YouTube Channel: https://www.youtube.com/channel/UCT1...eoFBszPIK0gf9w
Appreciate 0
      01-05-2013, 11:46 AM   #36
Chriskm3
Colonel
Canada
43

 
Chriskm3's Avatar
 
Drives: M3
Join Date: Jul 2012
Location: Toronto


Posts: 2,218
iTrader: (4)

Idle sound of the blower is amazing. It almost m///azing
Appreciate 0
      01-05-2013, 12:22 PM   #37
Jbook
Major
33

 
Jbook's Avatar
 
Drives: '11 ESS E90 M3
Join Date: Sep 2010
Location: South Bay Area


Posts: 1,290
iTrader: (20)

Garage List
2011 BMW E90 M3  [4.72]
Quote:
Originally Posted by Longboarder View Post
Awesome! We have a similar set up. Instead of the HFC X, I have the MRF Engineering X pipe but also the Akra slip + ESS 625. The blower will make your car sound a little different at idle from the engine bay (kinda like a faint jet engine sound). Normal driving probably wont sound any different than now but when you step on it with the blower, it changes the dynamics and while it won't be any louder, it rev's soooo fast that it will just seem very different.

I'm looking forward to your impressions once the blower is installed. What's the timing estimate on that?
Oh man, I can't wait to get the blower on!! They're just waiting on the CF manifold which almost makes me regret picking that option since it's completely unnecessary haha. I'm expecting it to ship out next week, so hopefully it will be on in a weeks time!

Time to go charge my GoPro and get some vids before it starts raining!
__________________
ESS VT2-625 w/ DCT Software | Alekshop Oil Cooler | Awron Gauge | 19" BBS FI | Ohlins R&T w/ Vorshlag Camber Plates | Alekshop Subframe Bushings | RD Sport Sway Bars F&R | Dinan Strut Braces & Pedals | Brembo GT 380 F&R w/ Endless Pads | Akrapovic GT4 | Vorsteiner GTS-V Lip | 3D Design Diffuser | Platte Forme CF Side Skirt Extensions | BMW Performance Seats, CF Spoiler, CF Mirror Covers & Steering Wheel
Appreciate 0
      01-05-2013, 02:19 PM   #38
L4ces
Captain
United_States
16

 
L4ces's Avatar
 
Drives: 2008 E92 M3 Alpine White
Join Date: Aug 2010
Location: Nj


Posts: 699
iTrader: (0)

Garage List
2008 M3  [0.00]
Yes do that! Lol!
Appreciate 0
      10-27-2014, 10:08 AM   #39
M3etM3
Private First Class
United_States
3

 
M3etM3's Avatar
 
Drives: E46 M3, E90 M3, E30 M3, M3's!
Join Date: Jul 2014
Location: Up your alley


Posts: 184
iTrader: (0)

MOAR please!
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 07:50 PM.




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