E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Modify OEM exhaust to sound like PE exhaust



Reply
 
Thread Tools Search this Thread
      09-12-2012, 07:55 PM   #23
Zebra99
Colonel
 
Zebra99's Avatar
 
Drives: 2011 335is E93
Join Date: Aug 2011
Location: Ontario

Posts: 2,211
iTrader: (4)

Garage List
Some shop out in the states somewhere (very vague, haha) did this for the M3 guys and it was the same deal...

I believe they changed the packing/insulating and replaced the perforated pipe with a straight pipe.
Zebra99 is offline   Canada
0
Reply With Quote
      09-12-2012, 08:23 PM   #24
e92oholic
Banned
 
Drives: 2013 MINI JCW GP
Join Date: Feb 2012
Location: Buffalo NY

Posts: 854
iTrader: (6)

Okay after seeing pictures of the insides of the mufflers in the first link below I think I want to try this. The right side muffler has 2 pipes with holes, and the left has 2 but has a mini cat. So do I leave the mini cat or cut that out too?

http://www.e90post.com/forums/showthread.php?t=250659

In the video where they did it to the M3 exhaust they only welded one pipe on each side but they didnt open up the whole thing... Post 22. But from what I found the other pipes on the outside part they didnt cut open were solid to begin no holes at all.

http://www.e90post.com/forums/showthread.php?t=593524

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


My girlfriend is a pretty good welder and she has one so wtf lets give it a try right? Quick question tho would stock mufflers from a e90 fit my e92? My friend has the PE with his old mufflers laying around that I could possibly that do the mod then fit to my car. Or I could drop the whole exhaust and drive around with nothing lol.
e92oholic is offline   United_States
0
Reply With Quote
      09-13-2012, 09:14 AM   #25
shortseller
Captain
 
Drives: 2010 E92 335i
Join Date: Aug 2010
Location: Northern VA

Posts: 652
iTrader: (0)

Quote:
Originally Posted by Zebra99 View Post
I just replied in the above topic to see if that member can provide some further insight. It looks like there is a Y-pipe connection at the end of the resonator. If that resonator could be cut and made into a straight pipe, I can almost guarantee that would amplify sound. Or, you can cut the mid pipe that connects the mufflers, but it seems that might cause chocking if you have the flap still and aren't running golf-t mod or canflap open on a JB4.

We need some more experts to chime in on this, but it looks like we're going to crack this soon and PE sales will be Nil in the near future lol
Please keep in mind the PE does not make use of a flapper, so you might be on to something.
shortseller is offline   United_States
0
Reply With Quote
      09-13-2012, 01:15 PM   #26
Jubrew32
New Member
 
Drives: White e92 6mt
Join Date: Jul 2012
Location: Humble, TX

Posts: 12
iTrader: (0)

What is PE?
Jubrew32 is offline  
0
Reply With Quote
      09-13-2012, 01:24 PM   #27
xborndaballx
Registered
 
xborndaballx's Avatar
 
Drives: Arctic Metallic E90 335i
Join Date: Jan 2011
Location: Orlando, FL USA

Posts: 594
iTrader: (2)

PE=Performance Exhaust
xborndaballx is offline   United_States
0
Reply With Quote
      09-14-2012, 01:44 PM   #28
Cbozz
Major
 
Cbozz's Avatar
 
Drives: M3
Join Date: Feb 2012
Location: Fort Lauderdale, Florida

Posts: 1,108
iTrader: (9)

Garage List
did anybody do that mod yet and would share their opinion on the outcome and sound?
__________________
AFE, AA, DCT
Cbozz is offline  
0
Reply With Quote
      09-14-2012, 05:09 PM   #29
mrquick68
Private First Class
 
mrquick68's Avatar
 
Drives: 2009 335i E90 M-Sport
Join Date: Sep 2010
Location: Kirkland

Posts: 105
iTrader: (1)

i can't believe no one has made a comment on the M3 exhaust in that video. Pure sex! Man, i wish i could have FBO N54 power w/ M3 top end and M3 exhaust sounds! Is that wishing too much!?
__________________
2013 S4 Prestige - 6MT - Black on Red/Black/CF. APR exhaust. Mods forthcoming!
2012 X70 35d X5 - Sport TiAg on Black, Premium, Apps, 20" Y-Spokes + 20" Black Forgestar CF10s! JBD - Tint Matched
2009 E90 335i 6MT - [i]Msport, LeMans Blue, Loaded! SOLD!!!
mrquick68 is offline   United_States
0
Reply With Quote
      09-14-2012, 06:51 PM   #30
NoQuarter
Second Lieutenant
 
Drives: 2007 530xi / 2008 535xi
Join Date: Jan 2011
Location: Indiana

Posts: 221
iTrader: (0)

Quote:
Originally Posted by mrquick68
i can't believe no one has made a comment on the M3 exhaust in that video. Pure sex! Man, i wish i could have FBO N54 power w/ M3 top end and M3 exhaust sounds! Is that wishing too much!?
I wish I had a girlfriend that could weld.
NoQuarter is offline   United_States
0
Reply With Quote
      09-14-2012, 08:20 PM   #31
e92oholic
Banned
 
Drives: 2013 MINI JCW GP
Join Date: Feb 2012
Location: Buffalo NY

Posts: 854
iTrader: (6)

Quote:
Originally Posted by Cbozz View Post
did anybody do that mod yet and would share their opinion on the outcome and sound?
Im doing to do it soon, i just want some opinions. Should i replace all the perforated pipes, just the inners, all and the weird little cat thing.
e92oholic is offline   United_States
0
Reply With Quote
      09-14-2012, 10:20 PM   #32
Cbozz
Major
 
Cbozz's Avatar
 
Drives: M3
Join Date: Feb 2012
Location: Fort Lauderdale, Florida

Posts: 1,108
iTrader: (9)

Garage List
Quote:
Originally Posted by e60oholic View Post
Im doing to do it soon, i just want some opinions. Should i replace all the perforated pipes, just the inners, all and the weird little cat thing.
First, make sure you'll take pictures of every step... I wanna see exactly how its done... If you can of course.

Second, I would replace perforated pipes but I would leave some holes in them so there is some muffled sound and its not a straight muffler delete and I would also leave cat as well... Also someone on here said that removing the wool material from inside the muffler box would help the sound.. I would try to reduce the amount of it in there..
I wonder when you are in the process of doing it you can somehow rig the muffler closed and temporarily put it back on your car so you can check the sound before you weld it all shut and put it back on....that would be the best to get the exact sound anybody's looking for...right
__________________
AFE, AA, DCT
Cbozz is offline  
0
Reply With Quote
      09-14-2012, 11:34 PM   #33
Dr. G
Brigadier General
 
Dr. G's Avatar
 
Drives: Black e92 335i
Join Date: Apr 2010
Location: Brampton, Ontario

Posts: 4,935
iTrader: (32)

Garage List
e92 BMW 335i  [4.35]
Quote:
Originally Posted by e60oholic View Post
Okay after seeing pictures of the insides of the mufflers in the first link below I think I want to try this. The right side muffler has 2 pipes with holes, and the left has 2 but has a mini cat. So do I leave the mini cat or cut that out too?
In the video where they did it to the M3 exhaust they only welded one pipe on each side but they didnt open up the whole thing... Post 22. But from what I found the other pipes on the outside part they didnt cut open were solid to begin no holes at all.

My girlfriend is a pretty good welder and she has one so wtf lets give it a try right? Quick question tho would stock mufflers from a e90 fit my e92? My friend has the PE with his old mufflers laying around that I could possibly that do the mod then fit to my car. Or I could drop the whole exhaust and drive around with nothing lol.
You can put the e90 mufflers onto an e92. The tips might be a bit recessed so take care of that while aligning things before installing it.

I was too lazy to read what's going on in this thread, but I recall the M3's had a setup where it was basically a muffler bypass that still maintained the helmholtz section to combat drone, something leads me to believe the PE could be a similar setup, but with a perforated section and a tiny bit of packing material.



Quote:
Originally Posted by NoQuarter View Post
I wish I had a girlfriend that could weld.
LOL I thought I was the only weirdo who was thinking this while reading that post

If I did I would even have her cut open my PE for you guys haha.
__________________
JB4 / OSS Angel Eyes / Downpipes / F1-Racewerks FMIC / Custom Meth Kit / BMS DCI / ER Chargepipe / HKS BOV / BMS Meth Elbow / BMW Performance Exhaust / Carbon Fiber Inlay Quad Tips / 19" Miro 111 / Front Aero Lip / M3 Sides / VRS CSL Trunk / Mtech Rear / DD CF Quad Finned Diffuser / LCI Tails / BBK / Smoked Reflectors / F1 Euphoria LED Interior / License LED's / GT 5000k Corners / 5000k HID Fogs / Air Scoops / LED Turn Signals / FK Silverline Coilovers / HPA endlinks / Vibrant Resonators / Osram CBI 5000k D1S
Dr. G is offline  
0
Reply With Quote
      09-15-2012, 12:31 AM   #34
blisstik
Major
 
blisstik's Avatar
 
Drives: E92
Join Date: Jul 2009
Location: California

Posts: 1,302
iTrader: (14)

Garage List
2007 BMW 335i  [0.00]
After seeing the photos, I think only the resonator on the left exhaust should be cut and replaced with a straight pipe.

For both exhaust pieces, lessen the amount of filler to maybe 50%, they are there to reduce heat in the trunk and reduce vibrations.

Just my $0.02
__________________
blisstik is offline   No_Country
0
Reply With Quote
      09-16-2012, 04:43 PM   #35
e92oholic
Banned
 
Drives: 2013 MINI JCW GP
Join Date: Feb 2012
Location: Buffalo NY

Posts: 854
iTrader: (6)

Im going to get a video scope from my friend and check out my buddies PE with it and see if I can gather some info. I talked to my friend who works on cars a lot and he thinks that mini cat thing should be straight pipes as well as the piece on the other side and less filler material. Hopefully we will be able to see something with the scope. Updates to follow when everyone gets back from Mpact
e92oholic is offline   United_States
0
Reply With Quote
      09-16-2012, 06:25 PM   #36
tmo24
Captain
 
tmo24's Avatar
 
Drives: 2010 335i e90 Msport
Join Date: Aug 2010
Location: Las Vegas

Posts: 896
iTrader: (3)

If someone will donate their oem mufflers in Vegas, I'll try it and document everything with pics and sound clips. Im very interested in trying this but want to have a spare just in case.
__________________
2010 335i AW e90 Msport
tmo24 is offline   United_States
0
Reply With Quote
      09-19-2012, 05:46 PM   #37
Beemw335
Colonel
 
Drives: 335i
Join Date: Mar 2011
Location: My car is my home

Posts: 2,015
iTrader: (2)

Bump, someone please try this, Im very interested in the final product! I would do it, but cant weld and dont have any spare mufflers
Beemw335 is offline  
0
Reply With Quote
      09-19-2012, 06:07 PM   #38
e92oholic
Banned
 
Drives: 2013 MINI JCW GP
Join Date: Feb 2012
Location: Buffalo NY

Posts: 854
iTrader: (6)

Quote:
Originally Posted by Beemw335
Bump, someone please try this, Im very interested in the final product! I would do it, but cant weld and dont have any spare mufflers
I'm getting a set of donated mufflers hopefully next week and starting the process. I just got a snap on video probe to check out the pipes on my friends PE this weekend. Once I get my research done I'll be welding in new pipes. I'll keep everyone updated.
e92oholic is offline   United_States
0
Reply With Quote
      09-19-2012, 08:23 PM   #39
Beemw335
Colonel
 
Drives: 335i
Join Date: Mar 2011
Location: My car is my home

Posts: 2,015
iTrader: (2)

Quote:
Originally Posted by e60oholic
Quote:
Originally Posted by Beemw335
Bump, someone please try this, Im very interested in the final product! I would do it, but cant weld and dont have any spare mufflers
I'm getting a set of donated mufflers hopefully next week and starting the process. I just got a snap on video probe to check out the pipes on my friends PE this weekend. Once I get my research done I'll be welding in new pipes. I'll keep everyone updated.
Thanks!!
Keep us posted
Beemw335 is offline  
0
Reply With Quote
      09-19-2012, 09:20 PM   #40
kagraham
New Member
 
Drives: E90 335i
Join Date: Aug 2012
Location: OK

Posts: 21
iTrader: (0)

This may be way off base, but is my only experience with modifying stock mufflers!

Before I turned 16 I had a Go-ped, a scooter powered by a 25cc 2-stroke weed-eater engine. Of course I began to modify it, and the first thing to go was the "floss" insulation that was in the tin-can muffler (made the scooter louder and supposedly added some sort of performance...who-knows)

Obviously the differences in application might be more than the similarities, but that insulation definately decreased the volume, and raspiness!

I'm really glad you're willing to begin some experiments. My scientific mind says, change one thing at a time so we can determine exactly what needs to be done, no more no less.

I would remove some insulation, leave the existing perforations and see what you get. If indeed that is a cat, I suspect it would be best to make the left and right symetrical.

Best,

- Karl

Quote:
Originally Posted by Cbozz View Post
First, make sure you'll take pictures of every step... I wanna see exactly how its done... If you can of course.

Second, I would replace perforated pipes but I would leave some holes in them so there is some muffled sound and its not a straight muffler delete and I would also leave cat as well... Also someone on here said that removing the wool material from inside the muffler box would help the sound.. I would try to reduce the amount of it in there..
I wonder when you are in the process of doing it you can somehow rig the muffler closed and temporarily put it back on your car so you can check the sound before you weld it all shut and put it back on....that would be the best to get the exact sound anybody's looking for...right
kagraham is offline  
0
Reply With Quote
      09-19-2012, 11:40 PM   #41
Cbozz
Major
 
Cbozz's Avatar
 
Drives: M3
Join Date: Feb 2012
Location: Fort Lauderdale, Florida

Posts: 1,108
iTrader: (9)

Garage List
Quote:
Originally Posted by kagraham View Post
This may be way off base, but is my only experience with modifying stock mufflers!

Before I turned 16 I had a Go-ped, a scooter powered by a 25cc 2-stroke weed-eater engine. Of course I began to modify it, and the first thing to go was the "floss" insulation that was in the tin-can muffler (made the scooter louder and supposedly added some sort of performance...who-knows)

Obviously the differences in application might be more than the similarities, but that insulation definately decreased the volume, and raspiness!

I'm really glad you're willing to begin some experiments. My scientific mind says, change one thing at a time so we can determine exactly what needs to be done, no more no less.

I would remove some insulation, leave the existing perforations and see what you get. If indeed that is a cat, I suspect it would be best to make the left and right symetrical.

Best,

- Karl

Makes perfect sense, I never messed with exhaust to be honest with you so I'm going to leave it up to you... I'll just might start with some down pipes... maybe that will make it sound deeper...
__________________
AFE, AA, DCT
Cbozz is offline  
0
Reply With Quote
      09-20-2012, 09:05 AM   #42
x-ception
Captain
 
x-ception's Avatar
 
Drives: 335xi
Join Date: Jan 2011
Location: NY/NJ

Posts: 936
iTrader: (13)



here is a video of this done on a 335, ACM in NJ does this mod for $500 I believe.
__________________
COBB |DINAN CAI|AA FMIC|VK|OSS| Arkym

COTM Pics Here
x-ception is offline  
0
Reply With Quote
      09-20-2012, 09:07 AM   #43
e92oholic
Banned
 
Drives: 2013 MINI JCW GP
Join Date: Feb 2012
Location: Buffalo NY

Posts: 854
iTrader: (6)

Quote:
Originally Posted by x-ception View Post


here is a video of this done on a 335, ACM in NJ does this mod for $500 I believe.
I wonder what they modified inside to make it like that hmmm..
e92oholic is offline   United_States
0
Reply With Quote
      09-20-2012, 11:20 AM   #44
elim11
Captain
 
Drives: e90m3
Join Date: Apr 2008
Location: irvine/sf

Posts: 614
iTrader: (10)

Quote:
Originally Posted by e60oholic View Post
I'm getting a set of donated mufflers hopefully next week and starting the process. I just got a snap on video probe to check out the pipes on my friends PE this weekend. Once I get my research done I'll be welding in new pipes. I'll keep everyone updated.
Thanks for stepping up to the plate. Hopefully the videoprobe can be of some use!
__________________
elim11 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 06:58 AM.




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