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
 
Steve Thomas BMW
Post Reply
 
Thread Tools Search this Thread
      11-07-2011, 05:40 PM   #1
f32458
Second Lieutenant
 
f32458's Avatar
 
Drives: E90 M3
Join Date: Jul 2011
Location: Santa Monica

Posts: 203
iTrader: (0)

pros and cons on straight pipes?

I had Akra EVO before the iPE F1. Both stinks but iPE is much much louder.
Why do you run full system and why not?
__________________
2011 E90 DCT, sold
2011 E92 DCT ZCP | Akrapovic full setup | Evolve stage II | OEM grille | splitter | spoiler
f32458 is offline  
0
Reply With Quote
      11-07-2011, 05:42 PM   #2
THE TECH
BimmerPost Supporting Vendor

 
THE TECH's Avatar
 
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas

Posts: 13,001
iTrader: (42)

Garage List
Send a message via AIM to THE TECH Send a message via Skype™ to THE TECH
Full system for the most power gains, pretty simple.
__________________
THE TECH is offline   United_States
0
Reply With Quote
      11-07-2011, 05:49 PM   #3
Sean05
Putcha ang ganda...
 
Sean05's Avatar
 
Drives: 08 MR E92 M3
Join Date: Feb 2010
Location: Los Angeles, Brea CA.

Posts: 5,284
iTrader: (9)

Send a message via Yahoo to Sean05
Pros: Power

Cons: Cel Engine Light...

Solution: Tune Or Akra Delete - R
__________________
Sean05 is offline   Philippines
0
Reply With Quote
      11-07-2011, 05:53 PM   #4
f32458
Second Lieutenant
 
f32458's Avatar
 
Drives: E90 M3
Join Date: Jul 2011
Location: Santa Monica

Posts: 203
iTrader: (0)

Quote:
Originally Posted by THE TECH View Post
Full system for the most power gains, pretty simple.
That is what I thought. When I had the Akra EVO for two weeks. I felt the gain is much more noticeable than my current iPE F1. I am embarrassed to WOT since it is way too loud in the city driving. I heard from some people saying with the valve closed, I gain more torque? My valve opens at 3800rpm in auto mode. Which is insanely loud after I pass 3800rpm so I let go of the gas pedal immediately. Again, it has been raining crazy lately. Haven't yet to drive it hard with the valve open/close.
__________________
2011 E90 DCT, sold
2011 E92 DCT ZCP | Akrapovic full setup | Evolve stage II | OEM grille | splitter | spoiler
f32458 is offline  
0
Reply With Quote
      11-07-2011, 09:50 PM   #5
1SICKM
Captain
 
1SICKM's Avatar
 
Drives: 2009 M3 E92
Join Date: Oct 2010
Location: Mansfield, NJ

Posts: 946
iTrader: (5)

Pros, power. Cons, smell and CEL w/ no tune
__________________
E92 M3 DCT...Powered by ESS VT2 650/DCT GTS Software/Aquamist HFS-3 50/50/Morr /Toyo R888's

CURRENT WORLD RECORD HOLDER 1/4 MILE - 12/7/12 (ESS VT2 625, Meth Off)
ATCO RACEWAY: 10.65 @ 131.79MPH 1.725 60FT
1SICKM is offline  
0
Reply With Quote
      11-08-2011, 01:04 AM   #6
bchang2001
Lieutenant
 
Drives: e92 M3
Join Date: Mar 2011
Location: OC,CA

Posts: 459
iTrader: (5)

can you smell the exhaust at a stop with the windows down?
bchang2001 is offline  
0
Reply With Quote
      11-08-2011, 01:50 AM   #7
eNCore
///M 5light
 
eNCore's Avatar
 
Drives: 13 MCB ///M5
Join Date: May 2008
Location: Los Angeles, 626

Posts: 433
iTrader: (1)

Quote:
Originally Posted by f32458 View Post
I had Akra EVO before the iPE F1. Both stinks but iPE is much much louder.
Why do you run full system and why not?
Can you explain why the Akra Evo stinks? I'm thinking about getting one very soon.
__________________
13 MCB ///M5

11 - 12 MW E92 ///M3 ZCP

08 - 11 E90 335i
eNCore is offline   United_States
0
Reply With Quote
      11-08-2011, 12:47 PM   #8
atruelunatic
Second Lieutenant
 
Drives: n/a
Join Date: Jun 2011
Location: East Bay, California

Posts: 286
iTrader: (1)

Quote:
Originally Posted by ///M-Turismo View Post
Can you explain why the Akra Evo stinks? I'm thinking about getting one very soon.
It uses hi-flo catalytic converters instead of regular cats. That's the thing that makes the smell of the exhaust go away, but having regular cats reduces the flow of the gases. Something along to that nature.
__________________
2011 e92 JzB 6MT
Akrapovic Evolution, ESS Tune, UUC SSK w/ DSSR, Stoptech SS brake lines, Eibach springs, OEM gloss black kidney grills, keyhole delete, LUX H8 3.0, full front clear bra, 20% tint, Macht Schenll Stud Conversion, Apex ARC-8 18x9.5/10 w/ 265/35 & 285/30 AD08's
atruelunatic is offline  
0
Reply With Quote
      11-08-2011, 04:02 PM   #9
ES_TRADER
Colonel
 
Drives: 328i, 335i, M3, 535i, X5, 36M
Join Date: Oct 2010
Location: OC

Posts: 2,464
iTrader: (3)

Garage List
2014 Ford Raptor (o ...  [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 bchang2001 View Post
can you smell the exhaust at a stop with the windows down?
usually No..but if stopped too long and wind blows up your ass, to the front, then yea, u can smell it...i like the smell tho...cant be good for u, im sure
ES_TRADER is offline  
0
Reply With Quote
      11-08-2011, 04:12 PM   #10
bigjae1976
Takes threads off topic...daily
 
bigjae1976's Avatar
 
Drives: 11 E90 M3 Individual
Join Date: Mar 2006
Location: Milwaukee, WI

Posts: 5,218
iTrader: (11)

Garage List
2004 BMW M3  [4.50]
2011 BMW E90 M3  [5.00]
2013 BMW 328i  [5.00]
The only time I regret not having cats (on my E46) is when its cold out and I want to warm up the car in the garage for a quick moment (with the garage door open of course)...the smell gets quite strong.
__________________


Sponsored by Momentum BMW #593...We Bleed BMW BLUE!
bigjae1976 is offline  
0
Reply With Quote
      11-08-2011, 08:38 PM   #11
BMWJ
Second Lieutenant
 
Drives: 2011 E92 M3
Join Date: Oct 2011
Location: NY

Posts: 276
iTrader: (0)

Pros: loud

Cons: loud
BMWJ is offline  
0
Reply With Quote
      11-08-2011, 09:13 PM   #12
P@Evolve
BimmerPost Supporting Vendor

 
P@Evolve's Avatar
 
Drives: Quick enough
Join Date: Apr 2011
Location: US

Posts: 352
iTrader: (1)

Quote:
Originally Posted by BMWJ View Post
Pros: loud

Cons: loud
Lmao
P@Evolve is offline  
0
Reply With Quote
      11-08-2011, 09:58 PM   #13
MR///M3
e90post veteran
 
MR///M3's Avatar
 
Drives: '12 M3, '09 335, '11 Mini R56
Join Date: Jul 2011
Location: central NJ

Posts: 1,384
iTrader: (5)

Quote:
Originally Posted by f32458 View Post
That is what I thought. When I had the Akra EVO for two weeks. I felt the gain is much more noticeable than my current iPE F1. I am embarrassed to WOT since it is way too loud in the city driving. I heard from some people saying with the valve closed, I gain more torque? My valve opens at 3800rpm in auto mode. Which is insanely loud after I pass 3800rpm so I let go of the gas pedal immediately. Again, it has been raining crazy lately. Haven't yet to drive it hard with the valve open/close.
why don't you keep the valves closed in the city and then when you want to rip it on the highway or side streets, open it? That's what I'm going to do when I install mine.
__________________
2012 Melbourne Red/Bamboo Novillo E92 M3 - ZCP, ZPP, DCT, BMW Apps, Sat Radio, Heated Seats
Mods- 20" BBS LM DBK, 18" Volk TE37SL, OSS, Arkym, RD Sport, and much more...
Thanks to- PYSpeed -- Morr Wheels -- OSS Designs -- iND-Distribution
MR///M3 is offline   United_States
0
Reply With Quote
      11-09-2011, 01:59 AM   #14
f32458
Second Lieutenant
 
f32458's Avatar
 
Drives: E90 M3
Join Date: Jul 2011
Location: Santa Monica

Posts: 203
iTrader: (0)

Quote:
Originally Posted by MR///M3 View Post
why don't you keep the valves closed in the city and then when you want to rip it on the highway or side streets, open it? That's what I'm going to do when I install mine.
This is what I do. Sometimes I just wanna WOT. Great, your M3 will sounds the most aggressive in your area soon.
__________________
2011 E90 DCT, sold
2011 E92 DCT ZCP | Akrapovic full setup | Evolve stage II | OEM grille | splitter | spoiler
f32458 is offline  
0
Reply With Quote
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 11:57 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