BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read




 

Post Reply
 
Thread Tools Search this Thread
      06-16-2012, 12:19 AM   #1
River Rat
Private First Class
31
Rep
110
Posts

Drives: 1M
Join Date: Nov 2011
Location: Taiwan

iTrader: (0)

N55 Midpipe

Guys who have installed the N55 mid pipe onto your 1M.... how is the sound after weeks or months of installation? Louder or the same? any problems? thanks
Appreciate 0
      06-16-2012, 01:41 AM   #2
ayao
Thread killer
628
Rep
1,891
Posts

Drives: 1M
Join Date: Aug 2011
Location: CA

iTrader: (2)

No problems.

Drone is substantially improved (it wasn't horrific to begin with).

Sound improvement is underwhelming. There's a nice howl that kicks in @ 3000-3500 rpm, though. Kind of reminds me of Nissan's G35 VQ?

I want to imagine better throttle response but that's probably my imagination.
Appreciate 0
      06-16-2012, 02:44 AM   #3
///1M
Captain
25
Rep
612
Posts

Drives: On a good day, AW 1M coupe
Join Date: Mar 2011
Location: between Indiana and the alley

iTrader: (0)

Will the dealer agree to do this installation?
Appreciate 0
      06-16-2012, 07:24 AM   #4
River Rat
Private First Class
31
Rep
110
Posts

Drives: 1M
Join Date: Nov 2011
Location: Taiwan

iTrader: (0)

I am still on the fence about making the change.. just want to make the exhaust sound a bit louder.. Will this do the trick?
Appreciate 0
      06-16-2012, 09:20 AM   #5
MrRoboto
Brigadier General
Canada
1838
Rep
4,835
Posts

Drives: VO 1M
Join Date: Aug 2007
Location: Canada

iTrader: (0)

The MadDad mid pipe has a more pronounced sound change from what I have heard.
Appreciate 0
      06-16-2012, 09:27 AM   #6
ayao
Thread killer
628
Rep
1,891
Posts

Drives: 1M
Join Date: Aug 2011
Location: CA

iTrader: (2)

It's very subjective. Some feel that the change is huge and the best thing evar. Others can barely notice a difference at all.

I think the change is subtle...

It does seem like the berks and maddads have a more noticeable difference in sound.
Appreciate 0
      06-16-2012, 09:37 AM   #7
dsomc6
Private
Canada
8
Rep
73
Posts

Drives: E46 M3 / M4 / M4 Cab (Sold)
Join Date: Aug 2006
Location: Oakville, ON, Canada

iTrader: (0)

I have done it - have a modest amount of street driving and a track day session on it.

I found a bit more burble on start up and would agree with a bit more rasp from 3000rpm and up. I found throttle response and spool up to be a bit better and installation was a breeze.

I agree that it also assisted with moderating the drone as well.
Appreciate 0
      06-16-2012, 09:56 AM   #8
Denso
Lieutenant Colonel
Scotland
715
Rep
1,529
Posts

Drives: e46M3 Ruby, Porsche Cayman GT4
Join Date: Oct 2010
Location: Sailing the petrol lake

iTrader: (0)

Garage List
2015 BMW M4  [0.00]
Quote:
Originally Posted by dsomc6
I have done it - have a modest amount of street driving and a track day session on it.

I found a bit more burble on start up and would agree with a bit more rasp from 3000rpm and up. I found throttle response and spool up to be a bit better and installation was a breeze.

I agree that it also assisted with moderating the drone as well.
Spot on agree with your comments 100%
Appreciate 0
      06-16-2012, 12:00 PM   #9
Papethova
Banned
224
Rep
3,094
Posts

Drives: '08 135/ '11 1M
Join Date: Oct 2007
Location: at Death Valley 127

iTrader: (1)

Quote:
Originally Posted by River Rat View Post
I am still on the fence about making the change.. just want to make the exhaust sound a bit louder.. Will this do the trick?
Yes especially from outside the car versus in the cabin

Quote:
Originally Posted by Denso View Post
Spot on agree with your comments 100%
+2
Appreciate 0
      06-16-2012, 07:15 PM   #10
oldBMWguy
Private
5
Rep
83
Posts

Drives: 2011 AW 1M [Finally !]
Join Date: Jul 2011
Location: Virginia Beach Va. USA

iTrader: (0)

Quote:
Originally Posted by Denso View Post
Spot on agree with your comments 100%
+3 .... based on three months of the N55
Appreciate 0
      06-16-2012, 09:32 PM   #11
kskpsu
First Lieutenant
kskpsu's Avatar
United_States
176
Rep
360
Posts

Drives: 1M; E90 M3 ZCP; M4 GTS
Join Date: Jul 2011
Location: Minneapolis, MN

iTrader: (0)

Garage List
'11 BMW 1M  [9.83]
I installed the MadDad a few weeks ago, still trying to decide if I like it. No doubt louder, burbles way more, can be a little boy racer at times. Sometimes I think it's spot on, sometimes I have buyer's remorse...not really a mod guy, so use that for context. Wish I had an N55 to do a back-to-back test with and see which one I'd like to settle with. Value equation is definitely in favor of the N55 through the many online OEM retailers.
__________________
-kskpsu
Appreciate 0
      06-17-2012, 12:54 PM   #12
providence
Private First Class
United_States
19
Rep
192
Posts

Drives: X3 35xi, F15 X5 (35d), 1M
Join Date: Nov 2009
Location: PA / Canada

iTrader: (0)

Did my N55 switch 2days ago (after much back and forth between MD pipes) Frist thing, on my drive back from my dealer .... The drone was all but GONE!!!
There was hardly a noticeable difference on start-up and idle.. And driving on highway was quiter ( bue to lack of drone)... Didn't do much pulls because I had the original pipes in the car stretching from the trunk to the front passenger seat w little room to spare... Didn't want to scratch interior parts.
But on returning home pulling into my garage she made a nice little durable that made even my wife smile!!
I'm not after the boy racer sound... And I suspect that there is yet to be a deepened note once we get some carbon build-up. (after 6300 miles on the original pipes they definitely sounded much better than they did last yr... The N55's are as good or slightly better brand new)
All in all for the cash lay-out I'm happy w my choice... The drone is gone.. Sound will be better... And if not to my specs then I'll add an akrapovic axle back and call it a day.
Appreciate 0
      06-17-2012, 08:42 PM   #13
ThumpersM3
Private
ThumpersM3's Avatar
United_States
30
Rep
86
Posts

Drives: 2020 X3MC
Join Date: Sep 2009
Location: NJ

iTrader: (0)

Quote:
Originally Posted by oldBMWguy View Post
+3 .... based on three months of the N55
+4 , had them on for about 5 months . It is just a very nice touch to the exhaust sound and there is absolutely no drone. Also up on a lift , the N55 midpipes looks like it belongs there(OEM) !
Appreciate 0
      06-17-2012, 10:56 PM   #14
Mahlzeit
Lieutenant
United_States
37
Rep
582
Posts

Drives: 1M
Join Date: Jul 2007
Location: Location Location

iTrader: (0)

Hi guys, any actual power increase over a stock setup? I read about spoolup and throttle response. But, any actual power? Maybe on combintation with a tune??

Thanks in advance.
Appreciate 0
      06-18-2012, 06:55 AM   #15
///1M
Captain
25
Rep
612
Posts

Drives: On a good day, AW 1M coupe
Join Date: Mar 2011
Location: between Indiana and the alley

iTrader: (0)

Would any specific part of the warranty be affected?

Would the entire warranty be affected?
Appreciate 0
      06-18-2012, 10:04 AM   #16
providence
Private First Class
United_States
19
Rep
192
Posts

Drives: X3 35xi, F15 X5 (35d), 1M
Join Date: Nov 2009
Location: PA / Canada

iTrader: (0)

just a little update:
did my PA state inspection this AM.. absolutely No problems....and the car sounds amazing from the outside... The mechanic stopped and started it a few times (not sure if he was trying to throw a code vs liking the sound), there is def a "modded" sound to the set-up.
Interestingly, as I was driving thru traffic I had to make sure that the M button was not engaged... limp mode is waaay more responsive now (speaks to spool-up time).
However, i used to experience a noteable "jolt" when the M buttom is pressed while driving... Its still there... just less pronounced... Can anyone back this up??

ps. if there are any concerns about emissions testing, I simply let the car idle for 30 min before my appt (shop is less than 3 miles from my home) that way the primary cats are at temp (hence fully functional) at time of inspection.
Appreciate 0
      06-18-2012, 10:18 AM   #17
GaryS
Colonel
37
Rep
2,084
Posts

Drives: 2009 135i 6MT
Join Date: Feb 2010
Location: Maryland

iTrader: (0)

Garage List
2009 135i  [6.50]
Quote:
Originally Posted by ///1M View Post
Would any specific part of the warranty be affected?

Would the entire warranty be affected?
This thing is easy to install, and just as easy to put the old part back. IMO you should always put the old part back before letting the dealer look under your car. They can crucify you for deleting a cat.
Appreciate 0
      06-18-2012, 11:05 AM   #18
-Z-
Second Lieutenant
10
Rep
287
Posts

Drives: Black Pyrat
Join Date: Sep 2011
Location: Constitution State

iTrader: (0)

Anyone in CT has just the N55 pipe and no other mods? I am installing MadDad's pipe next weekend and we could do a little test if interested.
Appreciate 0
      06-18-2012, 11:53 AM   #19
Xaeryan
Lieutenant
Xaeryan's Avatar
38
Rep
566
Posts

Drives: Sideways mostly
Join Date: Apr 2009
Location: Hazleton, PA

iTrader: (4)

Anyone know if there are provisions in SCCA stock classes for secondary cats? The rules are written with the traditional setup in mind (i.e. "cat-back exhausts" are allowed) and as such, strictly forbid cat removal. From 13.10E:

Quote:
Any part of the exhaust system beyond (downstream from) the header/
manifold or catalytic converter
, if so equipped, may be substituted
or removed provided the system meets the requirements of 3.5 and
3.3.3.B.15. Stainless steel heat exchangers are permitted only if the
physical dimensions and configuration remain unchanged.
Modifications of any type, including additions to or removal of, the
catalytic converters, thermal reactors, or any other pollution control
devices in the exhaust system are not allowed and the system must
be operable
.
I would imagine not since it contributes (however small or short-lived) to pollution control, and N54s are therefore limited to rear muffler section changes only in stock class, but perhaps there is a clarification somewhere?
Appreciate 0
      06-18-2012, 02:51 PM   #20
CarJunkie
Colonel
CarJunkie's Avatar
United_States
2616
Rep
2,819
Posts

Drives: e82 1M, f87 M2cs
Join Date: Nov 2011
Location: Tri-Cities, Washington

iTrader: (1)

Garage List
2020 M2cs  [0.00]
2011 BMW 1M  [0.00]
Quote:
Originally Posted by Xaeryan View Post

I would imagine not since it contributes (however small or short-lived) to pollution control, and N54s are therefore limited to rear muffler section changes only in stock class, but perhaps there is a clarification somewhere?
I doubt it would ever be noticed, but if it was it would be an embarassing disqualification.

Someone who knows their stuff would probably know to look for the secondary cats on a 1M midpipe. There is a reported 5-10hp gain, which is enough to warrant a non-stock designation when swapped.
Appreciate 0
      06-18-2012, 08:19 PM   #21
Em/1
Lieutenant
Em/1's Avatar
United_States
83
Rep
562
Posts

Drives: 2011 1M VO
Join Date: Dec 2011
Location: Chicago

iTrader: (0)

Garage List
2019 VW GTI SE  [0.00]
2020 Tesla M3P  [0.00]
2011 BMW 1M  [0.00]
Quote:
Originally Posted by JohnCena View Post
its glorious and add the meisterschaft and AR DPs yum
Do you have cat delete DP's? That must be VERY loud combo if so.
Appreciate 0
      06-18-2012, 09:00 PM   #22
River Rat
Private First Class
31
Rep
110
Posts

Drives: 1M
Join Date: Nov 2011
Location: Taiwan

iTrader: (0)

What is everyone doing with their old 1M midpipes?

Also, is there a problem with installing other company's slip-on exhaust with the N55 midpipes? is there alignment issues?

Thanks guys..
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



All times are GMT -5. The time now is 02:05 AM.




1addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
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