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
 
Evolve Automotive
View Poll Results: OEM Exhaust Mod: Bypass or Replace Perf Pipes?
Bypass 37 46.84%
Replace Perforated Pipes 42 53.16%
Voters: 79. You may not vote on this poll

Post Reply
 
Thread Tools Search this Thread
      01-05-2012, 11:01 AM   #23
SamS
Brigadier General
SamS's Avatar
61
Rep
4,579
Posts

 
Drives: 2013 ActiveHybrid 3
Join Date: Jul 2010
Location: Dallas, TX

iTrader: (0)

Quote:
Originally Posted by reechar View Post
I just got the bypass done. IT IS REALLY LOUD WOW. I'm going to see if I can DD this, but the second I get pulled over, I am probably swapping back to stock.
Post video!
Appreciate 0
      01-05-2012, 05:29 PM   #24
dagolfpro
Lieutenant Colonel
dagolfpro's Avatar
Taiwan
30
Rep
1,913
Posts

 
Drives: 2011 E90 M3
Join Date: Sep 2011
Location: SF Bay Area, CA

iTrader: (9)

OEM Exhaust Mod Done

So, I had this done this morning and I'm trying to upload the video, but it's too big. Once I have the video trimmed, I'll upload it then.

I had the tips powder coated black so you can't see the residue build up. It definitely changed the looks of it.

As for the sound. When idling, you could tell anything was done but not too loud. But as soon as you step on the gas, it's a whole difference world.
Attached Images
  
__________________
2011 E90 AW | DCT | ZCP | ZCV | ZCW | ZP2 | Prem Sound | Moonroof | BMW Apps |
Evolve Exhaust | M Perf Steering Wheel | Tint | Lux | Painted Reflectors | Hardwired V1 | KW V3 | Volshlag CP | Brembo BBK | 18" Volks TE37SL Pressed Graphite | Yokohama AD08 | Schroth 4 Point Harness | Challenge GT Diffuser | I lied earlier, I wasn't done with mod, but I swear, I'm done now, no more mods...

Last edited by dagolfpro; 01-05-2012 at 05:44 PM.
Appreciate 0
      01-05-2012, 06:10 PM   #25
zhp2m3
Private First Class
United_States
1
Rep
129
Posts

 
Drives: 2011.75 E90 LeMans Blue
Join Date: Oct 2011
Location: SF Bay Area

iTrader: (0)

Looks good and sounds great!
Appreciate 0
      01-05-2012, 06:42 PM   #26
uplusd
Lieutenant
uplusd's Avatar
United_States
6
Rep
458
Posts

 
Drives: 2013 E92 M3
Join Date: Nov 2011
Location: NorCal

iTrader: (7)

Quote:
Originally Posted by dagolfpro View Post
So, I had this done this morning and I'm trying to upload the video, but it's too big. Once I have the video trimmed, I'll upload it then.

I had the tips powder coated black so you can't see the residue build up. It definitely changed the looks of it.

As for the sound. When idling, you could tell anything was done but not too loud. But as soon as you step on the gas, it's a whole difference world.
Did you replace just the large perforated pipes or also the smaller pipes that are already wrapped?
__________________
Appreciate 0
      01-05-2012, 06:42 PM   #27
Chipped B6
Favorite ride of all time?: Blondes.
Chipped B6's Avatar
United_States
48
Rep
1,089
Posts

 
Drives: Boooooost!
Join Date: Mar 2007
Location: Far away

iTrader: (0)

Garage List
2014 228i Coupe  [0.00]
2013 ActiveHybrid 3  [0.00]
2014 M5  [2.00]
2011 Z4 35is  [4.80]
2011 M3 Coupe  [0.00]
What do you with the middle chamber exhaust as it will ne on its own after you bypass. So you pull them out or what?
__________________
Appreciate 0
      01-05-2012, 09:17 PM   #28
dagolfpro
Lieutenant Colonel
dagolfpro's Avatar
Taiwan
30
Rep
1,913
Posts

 
Drives: 2011 E90 M3
Join Date: Sep 2011
Location: SF Bay Area, CA

iTrader: (9)

Quote:
Originally Posted by uplusd View Post
Did you replace just the large perforated pipes or also the smaller pipes that are already wrapped?
I did the ACM method.

http://www.m3post.com/forums/showthread.php?t=609687

I bypassed the middle chamber entirely.

been told this method produces a louder/deeper sound.
__________________
2011 E90 AW | DCT | ZCP | ZCV | ZCW | ZP2 | Prem Sound | Moonroof | BMW Apps |
Evolve Exhaust | M Perf Steering Wheel | Tint | Lux | Painted Reflectors | Hardwired V1 | KW V3 | Volshlag CP | Brembo BBK | 18" Volks TE37SL Pressed Graphite | Yokohama AD08 | Schroth 4 Point Harness | Challenge GT Diffuser | I lied earlier, I wasn't done with mod, but I swear, I'm done now, no more mods...
Appreciate 0
      01-05-2012, 09:19 PM   #29
dagolfpro
Lieutenant Colonel
dagolfpro's Avatar
Taiwan
30
Rep
1,913
Posts

 
Drives: 2011 E90 M3
Join Date: Sep 2011
Location: SF Bay Area, CA

iTrader: (9)

Can't Upload 13 second video

I've tried many times and unable to upload the video. Maybe it's my lousy internet connection at work. I'll try again once I get home later tonight.
__________________
2011 E90 AW | DCT | ZCP | ZCV | ZCW | ZP2 | Prem Sound | Moonroof | BMW Apps |
Evolve Exhaust | M Perf Steering Wheel | Tint | Lux | Painted Reflectors | Hardwired V1 | KW V3 | Volshlag CP | Brembo BBK | 18" Volks TE37SL Pressed Graphite | Yokohama AD08 | Schroth 4 Point Harness | Challenge GT Diffuser | I lied earlier, I wasn't done with mod, but I swear, I'm done now, no more mods...
Appreciate 0
      01-11-2012, 10:40 AM   #30
reechar
Poorhouse
reechar's Avatar
5
Rep
131
Posts

 
Drives: 2008 E92 M3
Join Date: Feb 2011
Location: Northern Virginia, US

iTrader: (1)

Appreciate 0
      01-11-2012, 08:50 PM   #31
ObeyMyFast
OMGWTFBBQ
0
Rep
19
Posts

 
Drives: 2011 550i
Join Date: Dec 2010
Location: San Diego/Berkeley

iTrader: (0)

^ Awesome vid! I would definitely go that route.
Appreciate 0
      01-20-2012, 03:52 PM   #32
uplusd
Lieutenant
uplusd's Avatar
United_States
6
Rep
458
Posts

 
Drives: 2013 E92 M3
Join Date: Nov 2011
Location: NorCal

iTrader: (7)

I had all four perforated pipes replaced and the fiberglass restuffed into the middle chamber. I like the way it sounds, not too loud but definitely meaner than stock. Reminds me of a factory C63 in some ways.
Appreciate 0
      01-24-2012, 03:01 PM   #33
JoLo
Second Lieutenant
5
Rep
226
Posts

 
Drives: ///2011.5 ///E90 ///AW ///ZCP
Join Date: Apr 2011
Location: NNJ

iTrader: (0)

I had the ACM version done and i have to say its unbelievable. Definately aggressive as hell too. Awesome sound, but no way a cop should bother you unless your driving like an asshole. Anyone who is looking for pure sound and spends 2-3 g's on a muffler over this is insane, because this sounds as good and if not better then the nicest sounding mufflers i have heard for this car.
Appreciate 0
      01-25-2012, 10:40 AM   #34
Hotnickz07
New Member
0
Rep
28
Posts

 
Drives: 08 JB/B E93 DCT...Ballin
Join Date: Oct 2010
Location: Miami

iTrader: (0)

Just got the acm done as well in Miami at Speed Sho and i have to say is WOW . Thing is amazing sounds so good. The cold start sounds like a freaking monster coming to life. The guys at speed shop here in Mia really hooked it up, they did an amazing job. Only thing i regret is not having some nice tips to replace the oem ones, if anyone know a good place for them i would love to know. Also i dont see a reason why a cop would pull u over for the mod , unless ur really doing some serious speeds . Would recommend to all looking for that extra sound at a very low price
Appreciate 0
      05-21-2013, 12:47 AM   #35
0_to_60
First Lieutenant
0_to_60's Avatar
6
Rep
364
Posts

 
Drives: E92 M3
Join Date: Jul 2011
Location: LA, CA

iTrader: (0)

is this any different then a straight pipe no muffler mod?
Appreciate 0
      05-21-2013, 06:46 AM   #36
W///
Major General
W///'s Avatar
84
Rep
5,398
Posts

 
Drives: 2008 E92 M3/1999 E36 M3 Coupe
Join Date: Sep 2011
Location: SC

iTrader: (12)

Quote:
Originally Posted by 0_to_60 View Post
is this any different then a straight pipe no muffler mod?
Yes. Bypass method sounds 100x better than no muffler at all.
__________________
2008 E92 M3: Sparkling Graphite | Bamboo Beige | 6MT | CF Roof | HRE | Catless Eisenmann Race | BPM Sport | Swift | Arkym | Mode Carbon | M.Perf
Appreciate 0
      05-21-2013, 10:44 AM   #37
0_to_60
First Lieutenant
0_to_60's Avatar
6
Rep
364
Posts

 
Drives: E92 M3
Join Date: Jul 2011
Location: LA, CA

iTrader: (0)

Quote:
Originally Posted by W/// View Post
Yes. Bypass method sounds 100x better than no muffler at all.
do you lose torque like you do with no muffler?
Appreciate 0
      05-21-2013, 11:00 AM   #38
W///
Major General
W///'s Avatar
84
Rep
5,398
Posts

 
Drives: 2008 E92 M3/1999 E36 M3 Coupe
Join Date: Sep 2011
Location: SC

iTrader: (12)

Quote:
Originally Posted by 0_to_60 View Post
do you lose torque like you do with no muffler?
Couldn't tell. When I drove with the muffler, it sounded so terrible that I didn't want to get on it. Plus it was only a 5 min drive to the muffler shop.
__________________
2008 E92 M3: Sparkling Graphite | Bamboo Beige | 6MT | CF Roof | HRE | Catless Eisenmann Race | BPM Sport | Swift | Arkym | Mode Carbon | M.Perf
Appreciate 0
      05-21-2013, 11:10 AM   #39
0_to_60
First Lieutenant
0_to_60's Avatar
6
Rep
364
Posts

 
Drives: E92 M3
Join Date: Jul 2011
Location: LA, CA

iTrader: (0)

Quote:
Originally Posted by W/// View Post
Couldn't tell. When I drove with the muffler, it sounded so terrible that I didn't want to get on it. Plus it was only a 5 min drive to the muffler shop.
interesting, the reason im asking this i recently did the muffler delete and lost so much torque and its too loud. So acm or bypass mod might be the same. Therefore i might just do the preforated mod
Appreciate 0
      05-21-2013, 11:13 AM   #40
W///
Major General
W///'s Avatar
84
Rep
5,398
Posts

 
Drives: 2008 E92 M3/1999 E36 M3 Coupe
Join Date: Sep 2011
Location: SC

iTrader: (12)

Quote:
Originally Posted by 0_to_60 View Post
interesting, the reason im asking this i recently did the muffler delete and lost so much torque and its too loud. So acm or bypass mod might be the same. Therefore i might just do the preforated mod
Oh in terms of OEM exhaust mod, no power loss at all. A full muffler delete on the other hand yes, I would expect it to lose some torque.
__________________
2008 E92 M3: Sparkling Graphite | Bamboo Beige | 6MT | CF Roof | HRE | Catless Eisenmann Race | BPM Sport | Swift | Arkym | Mode Carbon | M.Perf
Appreciate 0
      05-21-2013, 11:16 AM   #41
0_to_60
First Lieutenant
0_to_60's Avatar
6
Rep
364
Posts

 
Drives: E92 M3
Join Date: Jul 2011
Location: LA, CA

iTrader: (0)

you mean the bypass method doesnt lose torque right? the car already lacked torque and now after the delete it feels worse.
Appreciate 0
      05-21-2013, 11:23 AM   #42
W///
Major General
W///'s Avatar
84
Rep
5,398
Posts

 
Drives: 2008 E92 M3/1999 E36 M3 Coupe
Join Date: Sep 2011
Location: SC

iTrader: (12)

Quote:
Originally Posted by 0_to_60 View Post
you mean the bypass method doesnt lose torque right? the car already lacked torque and now after the delete it feels worse.
Nope, not that I could tell and I had it for about 8 months. IMO still one of the best sounding exhausts out there too.
__________________
2008 E92 M3: Sparkling Graphite | Bamboo Beige | 6MT | CF Roof | HRE | Catless Eisenmann Race | BPM Sport | Swift | Arkym | Mode Carbon | M.Perf
Appreciate 0
      05-21-2013, 11:38 AM   #43
0_to_60
First Lieutenant
0_to_60's Avatar
6
Rep
364
Posts

 
Drives: E92 M3
Join Date: Jul 2011
Location: LA, CA

iTrader: (0)

Quote:
Originally Posted by W/// View Post
Nope, not that I could tell and I had it for about 8 months. IMO still one of the best sounding exhausts out there too.
great info, and have you heard the oe preforated mod one? did you like it?
Appreciate 0
      05-21-2013, 12:08 PM   #44
W///
Major General
W///'s Avatar
84
Rep
5,398
Posts

 
Drives: 2008 E92 M3/1999 E36 M3 Coupe
Join Date: Sep 2011
Location: SC

iTrader: (12)

Quote:
Originally Posted by 0_to_60 View Post
great info, and have you heard the oe preforated mod one? did you like it?
I didn't to be honest. I went straight for bypass method, and it sound absolutely amazing. Would still have it on my car if I didn't go full catless.
__________________
2008 E92 M3: Sparkling Graphite | Bamboo Beige | 6MT | CF Roof | HRE | Catless Eisenmann Race | BPM Sport | Swift | Arkym | Mode Carbon | M.Perf
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 07:13 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