E90Post
 


European Auto Source
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Vishnu Exhaust-- suggestions?



Reply
 
Thread Tools Search this Thread
      02-25-2007, 04:01 PM   #1
shiv@vishnu
Tuner
 
Drives: X1, 335i
Join Date: Sep 2006
Location: SF Bay, CA

Posts: 17,616
iTrader: (0)

Vishnu Exhaust-- suggestions?

Hi guys,

Now that we're up to speed on the engine control side of things and have actually tuned several dozen cars, it's time to make an exhaust system. Some of you have liked the sound of the exhaust on my personal car. It runs twin oval bodied SS magnaflows and is completely separated from the turbos (no X-pipe). Tips are just a tad bit bigger than stock. Second set of cats are bypassed, making it an off-road use only system. Although the car still sniffs clean at the tailpipe.

This is what we are leaning towards with the production unit. Any suggestions/comments/concerns/etc,? Now is the time to give us some ideas before we get too far along the process Please note that we're some time away from actually having any exhaust ready to sell. If you are in the market right now, it would probably be a better idea to get a quality exhaust that is currently available (Harmanmotive, AA, Ultimate Racing, etc,.) We just want to get some feedback from you guys right now....

Cheers,
shiv
shiv@vishnu is offline   United_States
0
Reply With Quote
      02-25-2007, 04:12 PM   #2
RRGOO7
Colonel
 
RRGOO7's Avatar
 
Drives: GTR
Join Date: Dec 2006
Location: Miami FL

Posts: 2,445
iTrader: (13)

Make it LOUD and have a nice low end rumble.....

i heard that if you reduce the backpressure on turbo cars it kills their power range...is this true shiv?

My friend was thinking about taking out the rear muffler and welding straight pipes on but someone told him that he would have trouble....is this true?
RRGOO7 is offline  
0
Reply With Quote
      02-25-2007, 04:18 PM   #3
Acuracy
SAYPL335
 
Drives: 2007 335 Coupe
Join Date: Nov 2006
Location: Salisbury, NYC

Posts: 2,242
iTrader: (4)

Are there any talks about making Quads?
__________________


Acuracy is offline   Guyana
0
Reply With Quote
      02-25-2007, 04:18 PM   #4
AM335
Go Gators!
 
AM335's Avatar
 
Drives: E90 335i
Join Date: Aug 2006
Location: Florida

Posts: 695
iTrader: (2)

Garage List
2007 335i E90  [0.00]
No drone at any RPM.
AM335 is offline   United_States
0
Reply With Quote
      02-25-2007, 04:19 PM   #5
reds2
9000 RPM Redline
 
reds2's Avatar
 
Drives: Red S2000
Join Date: Jan 2007
Location: SoCal

Posts: 41
iTrader: (0)

Your exhaust should complement the PROcede. Function over form first. Stock looking tips and no drone. Though I don't think droning is as big an issue on turbo cars. Some weight savings and a nice exhaust note would be last.
reds2 is offline   United_States
0
Reply With Quote
      02-25-2007, 04:23 PM   #6
ksfrogman
Major General
 
ksfrogman's Avatar
 
Drives: E90 330i 6MT
Join Date: Nov 2005
Location: Torrance, CA

Posts: 6,751
iTrader: (12)

Garage List
2006 330i  [0.00]
2006 330i  [0.00]
Send a message via AIM to ksfrogman
Quote:
Originally Posted by Acuracy View Post
Are there any talks about making Quads?
this alone will boost your sales.
__________________
ksfrogman is offline   United_States
0
Reply With Quote
      02-25-2007, 04:27 PM   #7
BoostedBMW
Moderator
 
BoostedBMW's Avatar
 
Drives: TiAg E92 335
Join Date: Oct 2006
Location: Raleigh, NC

Posts: 6,787
iTrader: (14)

Garage List
2003 S2000  [0.00]
Send a message via AIM to BoostedBMW
SOUND is the most important thing for me with an exhaust. Even if it gained 50whp, if it sounded like crap, I wouldn't buy it. So far I haven't heard a single exhaust for the 335i that I have liked the sound of. Most of them either have a weird tone or they are way too quiet. If I wanted a quiet exhaust I would keep it stock, I like to hear my exhaust when I get on it. Make that sucker sing! I also like the idea of having an option for a quad exhaust, but the sound is the number one priority in my book.
__________________
-Michael.
Berlina Black S2000 CR is now in the garage

l 19" Rial Daytona Race l KW V2 l Eisenhaus Race Exhaust l
BoostedBMW is offline   United_States
0
Reply With Quote
      02-25-2007, 04:34 PM   #8
T Bone
Brigadier General
 
T Bone's Avatar
 
Drives: 2008 335xi Coupe
Join Date: Feb 2007
Location: The land where we kill baby seals

Posts: 4,021
iTrader: (0)

Shiv,

A couple of comments:
  • Please have your exhaust work on both the RWD i sedan and the AWD XI Sedan.....this will help your SKU management
  • Please don't use Magaflow - this is so North American / Muscle car....
  • Quad tips would be awesome but it will be hard with the bumper.
  • On the exhaust tip, please ensure you imprint your company logo
__________________
"Aerodynamics are for people who cannot build engines"......Enzo Ferrari
T Bone is offline  
0
Reply With Quote
      02-25-2007, 04:42 PM   #9
teknochild
Your resident 4um troll
 
teknochild's Avatar
 
Drives: 335 coupe
Join Date: Dec 2006
Location: fl

Posts: 2,021
iTrader: (0)

i wish you would get a back to back soundfile of the stock vs your exhaust for those of us who havent been able to hear it

i disagree with some of the above on making it quad and louder, quad = new bumper, i know i dont want to be forced to deal with that, and i know im not the only one that doesnt want to sound like a civic buzzing down the road

loud is ok, as long as its not loud by sacrificing pitch


Quote:
Originally Posted by RRGOO7 View Post
i heard that if you reduce the backpressure on turbo cars it kills their power range...is this true shiv?
i wish this would die already
__________________
RAWRrrrr
teknochild is offline  
0
Reply With Quote
      02-25-2007, 05:06 PM   #10
DIRKD
First Lieutenant
 
DIRKD's Avatar
 
Drives: 335 sedan
Join Date: Nov 2006
Location: desert

Posts: 304
iTrader: (0)

Make it sound like the Evosport M5. lol
DIRKD is offline  
0
Reply With Quote
      02-25-2007, 05:11 PM   #11
Ninjaneer
Shadow Warrior
 
Ninjaneer's Avatar
 
Drives: '07 335i Sedan
Join Date: Aug 2006
Location: Florida

Posts: 2,097
iTrader: (0)

Any sound clips shiv? Also what do you mean exactly by "off-road use system only?"
__________________
335i E90 / Arctic / Gray / Burl Walnut / Steptronic / ZPP / ZSP / Paddles / CA / Nav / PDC / OEM Spoiler
Mods:
PIAA Angel Eyes, Rear Fog Switch, Escort X50 Blue hardwire, 30% Charcoal Llumar
Installing soon: Rear Power Outlets (Happy Robot mod!)
Ninjaneer is offline   United_States
0
Reply With Quote
      02-25-2007, 05:13 PM   #12
bronco
Colonel
 
bronco's Avatar
 
Drives: e92
Join Date: Nov 2006
Location: Atlanta

Posts: 2,105
iTrader: (0)

Make it sound just like the old G35s, and maybe (maybe) a little louder
__________________
SaaS - The world of tomorrow is already here...www.saaschronicles.com
bronco is offline   United_States
0
Reply With Quote
      02-25-2007, 05:19 PM   #13
teknochild
Your resident 4um troll
 
teknochild's Avatar
 
Drives: 335 coupe
Join Date: Dec 2006
Location: fl

Posts: 2,021
iTrader: (0)

Quote:
Originally Posted by Ninjaneer View Post
Any sound clips shiv? Also what do you mean exactly by "off-road use system only?"
standard disclaimer for most aftermarket mods effecting engine managment or emmissions

technically the procede is for offroad use only too, i forget what they call it but adjustable fuel delievery is illegal for road use
__________________
RAWRrrrr
teknochild is offline  
0
Reply With Quote
      02-25-2007, 05:25 PM   #14
roller84
Captain
 
roller84's Avatar
 
Drives: E90 335i & E60 550i
Join Date: Dec 2005
Location: NYC

Posts: 714
iTrader: (2)

Quote:
Originally Posted by Acuracy View Post
Are there any talks about making Quads?
+1
__________________
OEM SS Kit & Performance Steering Wheel| Blacklines | HO 30% Tints | Euro Xenons | Lux 5.0 | 6000k Xenons | RD Sport Quad Exhaust | Spearco Intercooler | Procede V3 | MORR VS7 | KW V3 | H&R Sways | Mtech Bodykit | Vorsteiner CF Hood, CSL Trunk & Front Lip | ACS Style Roof Spoiler | Quaife LSD | Rotora BBK | GruppeM Intake | Forge UK DV | AR Design Catted DP's
roller84 is offline  
0
Reply With Quote
      02-25-2007, 05:27 PM   #15
retrodrive
Lieutenant Colonel
 
Drives: 335i
Join Date: Jan 2007
Location: Irvine, CA

Posts: 1,938
iTrader: (8)

Perfect exhaust would scream when you get on it and be quieter (almost stock-like) in lower RPM ranges. Obviously no rasp. There are going to be plenty of loud exhausts on the market very shortly, because they are easy to make. Stand out and make something unique (yeah, no magnaflows)

Also, make sure that later addition of aftermarket downpipe won't create any unpleasant surprises in the exhaust tonality. If possible give a choice of double or quad exhaust tips.
retrodrive is offline   United_States
0
Reply With Quote
      02-25-2007, 05:29 PM   #16
nikegunit
$$$
 
nikegunit's Avatar
 
Drives: 335i
Join Date: Jan 2007
Location: Air

Posts: 103
iTrader: (0)

Looks and Sounds

so far, i really liked Active Autowerkes pipes, all polished chrome, very nice looking, sound wise, anything with a growl as appose to a high rasp. but i guess that the 335's performance will partly dictacte its noise? simple bolt-on with no modifications, bigger tips, perhaps 90-100mm. dont shoot for comparisons of cars like G35 or 350z's, try to shoot for Ferrari/Porsche like! usually Supersprint have nice sounding exhuast systems

http://www.e90post.com/forums/showthread.php?t=48260

quality quality quality!
nikegunit is offline   Jordan
0
Reply With Quote
      02-25-2007, 05:37 PM   #17
TheAcAvenger
Brigadier General
 
TheAcAvenger's Avatar
 
Drives: 2007 E92 335i
Join Date: Apr 2006
Location: 757, VA

Posts: 3,094
iTrader: (1)

Performance is more important to me, personally, than sound. But obviously,I wouldnt buy something that sounded ridiculously bad. I'm with those that'd prefer dual exhausts instead of quads. When I think quad, i think M3.. and I didn't want an M3. 90-100mm sounds like a nice figure.

If I can just go ahead and be greedy, definitely go with a turboback, and how about copying apex'i and giving us an electronic control valve so we can be quiet when we want and loud and powerful when we want.
__________________
2007 E92 335i - TC Kline DA Coilovers, HPA M3 Suspension Retrofit, Quaife LSD, Stoptech 6/4 BBK, Volk TE-37s, AR Downpipes, RDSport Quads, Forge DVs, Stett OC, RB Turbos, Procede V5, PWM Meth, Helix IC, EAS DCI, Rixster VEI, M-Tech Sides, OEM Aero Lip, Rieger Spoiler, Vorsteiner V-35 Hood, Performance Steering Wheel, Anthracite Headliner, OSS Headlights
TheAcAvenger is offline   United_States
0
Reply With Quote
      02-25-2007, 06:02 PM   #18
NaViT
Banned
 
NaViT's Avatar
 
Drives: 04 M3/E92 335i
Join Date: Sep 2006
Location: N.Florida

Posts: 3,411
iTrader: (11)

Quote:
Originally Posted by TheAcAvenger View Post
Performance is more important to me, personally, than sound. But obviously,I wouldnt buy something that sounded ridiculously bad. I'm with those that'd prefer dual exhausts instead of quads. When I think quad, i think M3.. and I didn't want an M3. 90-100mm sounds like a nice figure.

If I can just go ahead and be greedy, definitely go with a turboback, and how about copying apex'i and giving us an electronic control valve so we can be quiet when we want and loud and powerful when we want.
there we go that would be perfect
NaViT is offline   United_States
0
Reply With Quote
      02-25-2007, 06:04 PM   #19
mayanh8
Second Lieutenant
 
mayanh8's Avatar
 
Drives: 2007 335i Coupe
Join Date: Dec 2006
Location: DE

Posts: 222
iTrader: (0)

Quads would be just like slapping an M logo on the 335i. The quad look is exactly that, a look. It doesn't offer any better performance or sound.

Form should always follow function. That being the case I would like a simple true dual, as light weight as possible, producing the most power. Sound, as usual, is important as well.
mayanh8 is offline  
0
Reply With Quote
      02-25-2007, 06:10 PM   #20
Acuracy
SAYPL335
 
Drives: 2007 335 Coupe
Join Date: Nov 2006
Location: Salisbury, NYC

Posts: 2,242
iTrader: (4)

It clear that we are mixed on the quads. If possible, make it an option. I dont mind getting a new back bumper as i plan on replacing in anyway as i alwayz liked the quad look.

But i have to agree with the others in terms of sound, No rasp, and not tooo loud.

Travis
__________________


Acuracy is offline   Guyana
0
Reply With Quote
      02-25-2007, 06:23 PM   #21
sillygoat
Captain
 
Drives: 335i tiag
Join Date: May 2006
Location: las vegas, nv

Posts: 794
iTrader: (11)

Send a message via AIM to sillygoat
i love the stock exhaust sound.
sillygoat is offline  
0
Reply With Quote
      02-25-2007, 06:29 PM   #22
CoralRedPlz
restless
 
Drives: Space Grey, Coral Red 335i
Join Date: Nov 2006
Location: around town

Posts: 485
iTrader: (0)

Quote:
Originally Posted by ksfrogman View Post
this alone will boost your sales.
any exhaust that forces people to buy a new bumper is not likely to boost sales imo.

perhaps enthusiasts will be more likely to buy, but the average guy just looking for an exhaust upgrade wont be as likely to get one if they have to buy a different bumper or alter their existing one.
__________________
335i space, coral/gray poplar, step, loaded, but with no AS, AC or rear shade. Front lip painted and installed and springs going on this week. pics coming soon.
CoralRedPlz is offline  
0
Reply With Quote
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 07:07 PM.




e90post
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