E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 08-25-2015, 02:38 PM   #1
holytrails
Registered User
 
Join Date: Aug 2015
Location: NorCal
Posts: 190
My Ride: 2006 M3 6MT
Aftermarket Muffler Add Any HP or Torque?

Other than sound, do these offer any real performance gains? Any dyno tests done?
holytrails is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 08-25-2015, 09:15 PM   #2
rkneeshaw
Registered User
 
Join Date: Oct 2008
Location: Northern Michigan
Posts: 1,213
My Ride: 330i ZHP
Not much. Best bang for buck exhaust mod is cat-less headers, but then its loud and raspy
__________________
2003 BMW 330i ZHP
ESS Twin Screw Stage 2 - Wavetrac - Headers - Magnaflow - BMW Performance
Turner Motorsports - Powerflex - StopTech

Build thread: http://forum.e46fanatics.com/showthread.php?t=696662
Wheelwell: 2003 BMW 3 Series
Fuelly: 2003 BMW 330i
rkneeshaw is offline   Reply With Quote
Old 08-25-2015, 11:47 PM   #3
holytrails
Registered User
 
Join Date: Aug 2015
Location: NorCal
Posts: 190
My Ride: 2006 M3 6MT
In CA, we can't go catless, not legally at least. I don't want race--tune loud, just a purr. Those full exhausts are crazy expensive...$2500?! I'd do just the catback. But if no performance gain, it seems a waste of $$ for sound.

Ah, better use to $$ on maintenance, then some wheels and maybe a lowering kit.

Last edited by holytrails; 08-25-2015 at 11:49 PM.
holytrails is offline   Reply With Quote
Old 08-26-2015, 12:01 AM   #4
Rob43
Performance Suspension Guru
 
Rob43's Avatar
 
Join Date: Oct 2009
Location: Richmond VA
Posts: 7,313
My Ride: 03 331Ci 5spd R1200R
The Magnaflow 16533 Cat-Back is Much lighter than stock & "Probably" makes about 5 WHP. Though I don't know of anyone that gave it a back to back dyno to see what it made all by itself. List price (MAP) is $950, best price I know of is roughly $736 shipped.

Thrust me when I say it's a Nice product, plus whenever you sell it in a few years you'll get roughly .70 to .75 cents on the dollar for it.


Rob43
__________________



Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

NEW E46 Xi COILOVERS DISCOVERED FOR ~$729 SHIPPED
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I Know How To Fix The Rear "Bouncing" Problem On Your Inexpensive Coilovers Like: Jom, RL, SE, RK, SW, & FK.
Rob43 is offline   Reply With Quote
Old 08-26-2015, 12:49 AM   #5
holytrails
Registered User
 
Join Date: Aug 2015
Location: NorCal
Posts: 190
My Ride: 2006 M3 6MT
Ah, $736. Thats not bad. Better than $900 for a used SuperSprint muffler only. Where is this available for that price? The link is for a 330i. I'm looking for something for an E46 M3.

http://www.ebay.com/itm/NEW-Magnaflo...0511cd&vxp=mtr

Did you mean something like this? Its $1420 shipped. Not bad either but more than the $736 you mentioned.

Last edited by holytrails; 08-26-2015 at 01:00 AM.
holytrails is offline   Reply With Quote
Old 08-26-2015, 12:59 AM   #6
Rob43
Performance Suspension Guru
 
Rob43's Avatar
 
Join Date: Oct 2009
Location: Richmond VA
Posts: 7,313
My Ride: 03 331Ci 5spd R1200R
Quote:
Originally Posted by holytrails View Post
Ah, $736. Thats not bad. Better than $900 for a used SuperSprint muffler only. Where is this available for that price? The link is for a 330i. I'm looking for something for an E46 M3.
Sorry can't help you.

I want you to immediately Edit out your "Truck" & add M3 with the year & trans.

Also stating this info in your First post will go a long way.....



Rob43
__________________



Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

NEW E46 Xi COILOVERS DISCOVERED FOR ~$729 SHIPPED
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I Know How To Fix The Rear "Bouncing" Problem On Your Inexpensive Coilovers Like: Jom, RL, SE, RK, SW, & FK.
Rob43 is offline   Reply With Quote
Old 08-26-2015, 02:31 AM   #7
holytrails
Registered User
 
Join Date: Aug 2015
Location: NorCal
Posts: 190
My Ride: 2006 M3 6MT
Quote:
Originally Posted by Rob43 View Post
Sorry can't help you.

I want you to immediately Edit out your "Truck" & add M3 with the year & trans.

Also stating this info in your First post will go a long way.....



Rob43
Gotcha. Updated.
holytrails is offline   Reply With Quote
Old 08-26-2015, 10:36 PM   #8
Rob43
Performance Suspension Guru
 
Rob43's Avatar
 
Join Date: Oct 2009
Location: Richmond VA
Posts: 7,313
My Ride: 03 331Ci 5spd R1200R
I found your Magnaflow #16602 Full Cat-Back exhaust for about $1150 shipped, if I owned an E46 M3 I'd buy it based on my Magnaflow 16533 experience.


Rob43
__________________



Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

NEW E46 Xi COILOVERS DISCOVERED FOR ~$729 SHIPPED
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I Know How To Fix The Rear "Bouncing" Problem On Your Inexpensive Coilovers Like: Jom, RL, SE, RK, SW, & FK.
Rob43 is offline   Reply With Quote
Old 08-27-2015, 02:45 AM   #9
holytrails
Registered User
 
Join Date: Aug 2015
Location: NorCal
Posts: 190
My Ride: 2006 M3 6MT
Great. Any dyno tests on these that you know of?
holytrails is offline   Reply With Quote
Old 08-27-2015, 01:03 PM   #10
Rob43
Performance Suspension Guru
 
Rob43's Avatar
 
Join Date: Oct 2009
Location: Richmond VA
Posts: 7,313
My Ride: 03 331Ci 5spd R1200R
Quote:
Originally Posted by holytrails View Post
Great. Any dyno tests on these that you know of?
Because it's new, only one.

This is Magnaflow's dyno of the 16602 on a Dynojet, not to shabby....



Rob43
Attached Thumbnails
Click image for larger version

Name:	16602.jpg
Views:	121
Size:	194.9 KB
ID:	610795  
__________________



Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

NEW E46 Xi COILOVERS DISCOVERED FOR ~$729 SHIPPED
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I Know How To Fix The Rear "Bouncing" Problem On Your Inexpensive Coilovers Like: Jom, RL, SE, RK, SW, & FK.
Rob43 is offline   Reply With Quote
Old 08-27-2015, 01:28 PM   #11
holytrails
Registered User
 
Join Date: Aug 2015
Location: NorCal
Posts: 190
My Ride: 2006 M3 6MT
Wow. Right about 5200 as the stock exhaust loses power the Mag continues to peak. But below the Mag has less HP than stock?

Am I reading those right?
Is this only with the cat back Mag or other mods too?

I always wonder too about the reliability of the manufactures claimed figures.

Last edited by holytrails; 08-27-2015 at 01:31 PM.
holytrails is offline   Reply With Quote
Old 08-27-2015, 03:17 PM   #12
Rob43
Performance Suspension Guru
 
Rob43's Avatar
 
Join Date: Oct 2009
Location: Richmond VA
Posts: 7,313
My Ride: 03 331Ci 5spd R1200R
Quote:
Originally Posted by holytrails View Post
Wow. Right about 5200 as the stock exhaust loses power the Mag continues to peak. But below the Mag has less HP than stock?

Am I reading those right?
Is this only with the cat back Mag or other mods too?

I always wonder too about the reliability of the manufactures claimed figures.

No, you're not reading it correctly.

Both the WHP & WTQ are better with the 16602 100% through that graph.



Rob43
__________________



Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

NEW E46 Xi COILOVERS DISCOVERED FOR ~$729 SHIPPED
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I Know How To Fix The Rear "Bouncing" Problem On Your Inexpensive Coilovers Like: Jom, RL, SE, RK, SW, & FK.
Rob43 is offline   Reply With Quote
Old 08-28-2015, 02:05 AM   #13
holytrails
Registered User
 
Join Date: Aug 2015
Location: NorCal
Posts: 190
My Ride: 2006 M3 6MT
So in order to take advantage of the Mag, I'd have to stay above 5200. More like race or fast driving range for my style. For daily driving, I'd be about 3000-5000rpm, which is right where the Mag is much lower than stock.

I tend to be mellow driver. I just want a little sound, so maybe an aftermarket muffler is all I need. Or just stay stock.
holytrails is offline   Reply With Quote
Old 08-28-2015, 02:46 PM   #14
Rob43
Performance Suspension Guru
 
Rob43's Avatar
 
Join Date: Oct 2009
Location: Richmond VA
Posts: 7,313
My Ride: 03 331Ci 5spd R1200R
Quote:
Originally Posted by holytrails View Post
So in order to take advantage of the Mag, I'd have to stay above 5200. More like race or fast driving range for my style. For daily driving, I'd be about 3000-5000rpm, which is right where the Mag is much lower than stock.

I tend to be mellow driver. I just want a little sound, so maybe an aftermarket muffler is all I need. Or just stay stock.
You Realy Aren't reading that dyno graph properly, it's showing EXCELLENT WTQ & WHP numbers from 3000 RPM to Redline.

Maybe take that 16602 dyno picture to Any mechanic & ask him to look at it & explain it to you.


Rob43
__________________



Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

NEW E46 Xi COILOVERS DISCOVERED FOR ~$729 SHIPPED
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I Know How To Fix The Rear "Bouncing" Problem On Your Inexpensive Coilovers Like: Jom, RL, SE, RK, SW, & FK.
Rob43 is offline   Reply With Quote
Old 08-28-2015, 03:47 PM   #15
holytrails
Registered User
 
Join Date: Aug 2015
Location: NorCal
Posts: 190
My Ride: 2006 M3 6MT
Ah. I couldn't see the lines correctly. You're right more torque and HP. Ok. Sold

Where did you see it for that price?
holytrails is offline   Reply With Quote
Old 09-01-2015, 01:28 AM   #16
holytrails
Registered User
 
Join Date: Aug 2015
Location: NorCal
Posts: 190
My Ride: 2006 M3 6MT
Quote:
Originally Posted by Rob43 View Post
I found your Magnaflow #16602 Full Cat-Back exhaust for about $1150 shipped, if I owned an E46 M3 I'd buy it based on my Magnaflow 16533 experience.


Rob43
Pray do tell...
holytrails is offline   Reply With Quote
Old 09-01-2015, 01:55 AM   #17
Rob43
Performance Suspension Guru
 
Rob43's Avatar
 
Join Date: Oct 2009
Location: Richmond VA
Posts: 7,313
My Ride: 03 331Ci 5spd R1200R
Quote:
Originally Posted by holytrails View Post
Pray do tell...
Send me a PM tomorrow at 5pm EST, we'll discuss it then.



Rob43
__________________



Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

NEW E46 Xi COILOVERS DISCOVERED FOR ~$729 SHIPPED
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I Know How To Fix The Rear "Bouncing" Problem On Your Inexpensive Coilovers Like: Jom, RL, SE, RK, SW, & FK.
Rob43 is offline   Reply With Quote
Old 09-02-2015, 03:20 PM   #18
carlosR
Registered User
 
Join Date: Jun 2010
Location: Flathead Lake Montana
Posts: 7
My Ride: 2003 M3
I think you're on the right track just getting a muffler for sound. I did the Euro headers and custom section 1. It is loud at the rpm range you are talking about driving in. Fortunately I live where I can open it up and at 3K rpms she begins to sing, performance response is impressive over stock setup.
carlosR is offline   Reply With Quote
Old 09-04-2015, 03:15 AM   #19
holytrails
Registered User
 
Join Date: Aug 2015
Location: NorCal
Posts: 190
My Ride: 2006 M3 6MT
yeah, headers would be nice if i were into tracking i think. they do sound nice too but maybe too loud for my top down cruising
holytrails is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Censor is OFF





All times are GMT -5. The time now is 08:15 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
(c) 1999 - 2016 performanceIX Inc - privacy policy - terms of use