BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      03-05-2012, 05:39 PM   #89
Papethova
Brigadier General
63

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


Posts: 3,037
iTrader: (1)

Quote:
Originally Posted by nicoz View Post
It's the same 3'' pipe at the end anyways?! No?!
This
Appreciate 0
      03-05-2012, 08:23 PM   #90
nicoz
Private First Class
4

 
Drives: 1M
Join Date: May 2011
Location: Montreal


Posts: 120
iTrader: (0)

Quote:
Originally Posted by Papethova View Post
This
?
Appreciate 0
      03-05-2012, 08:31 PM   #91
Ian///M
Major General
No_Country
81

 
Ian///M's Avatar
 
Drives: 1M
Join Date: Mar 2011
Location: Melbourne


Posts: 6,266
iTrader: (0)

Quote:
Originally Posted by nicoz View Post
It's the same 3'' pipe at the end anyways?! No?!
I understood that the N55 mid pipes where 2.75", while MadDad's are 3". Not referring to the ends though.

See here: http://www.daddysscp.com/product_p/md135mp.htm
Appreciate 0
      03-05-2012, 08:45 PM   #92
NC
Private
United_States
0

 
Drives: BSM 1M
Join Date: Sep 2007
Location: NC


Posts: 90
iTrader: (0)

Quote:
Originally Posted by oldBMWguy View Post
I ordered my N55 midpipes from http://getbmwparts.com/. for about $333 plus shipping to Va. Their diagram also showed the cats in the pipes, but they said the diagram was wrong... and they were correct. It came without the cats [I think the price is the giveaway-- if it is in the $330-350 range, you got the correct one].

FYI - I was quoted the following on my order from http://getbmwparts.com/:

Items Total: $333.22
Shipping Method: Standard Ground - US Only
Shipping: $24.95
Handling Fee: $3.95
Order Total: $362.12

Now they are telling me it's $75.00 for shipping even though they provided the quote above. Be warned.
Appreciate 0
      03-05-2012, 10:21 PM   #93
nicoz
Private First Class
4

 
Drives: 1M
Join Date: May 2011
Location: Montreal


Posts: 120
iTrader: (0)

Quote:
Originally Posted by ianf View Post
I understood that the N55 mid pipes where 2.75", while MadDad's are 3". Not referring to the ends though.

See here: http://www.daddysscp.com/product_p/md135mp.htm
I'm not sure about the exact sizing though... maybe someone here knows. But I do think the last little bit of piping before connecting to the rear part is 3'' on both midpipes... am I correct? Is the beginning of the rear part 3''? If so, and if both midpipes end in a 3'' pipe, then the restriction to flow will be the rear part anyway... even if midpipes were 4 or 5''.. to say something. Am I still correct?
Appreciate 0
      03-05-2012, 10:26 PM   #94
Zuzu
Major General
Australia
93

 
Zuzu's Avatar
 
Drives: VO 1M Beast
Join Date: Mar 2008
Location: SyDnEy Oz


Posts: 7,581
iTrader: (0)

Quote:
Originally Posted by nicoz View Post
I'm not sure about the exact sizing though... maybe someone here knows. But I do think the last little bit of piping before connecting to the rear part is 3'' on both midpipes... am I correct?
If you are referring to the OEM axle back pipe, before the muffler, then yes it is about 3"..

If you are referring to the midpipes, there is NO 3" pipe on the midpipes themselves.. You sound confused what is the midpipe and what is the axle back section..
Appreciate 0
      03-05-2012, 11:16 PM   #95
nicoz
Private First Class
4

 
Drives: 1M
Join Date: May 2011
Location: Montreal


Posts: 120
iTrader: (0)

Quote:
Originally Posted by Zuzu View Post
If you are referring to the OEM axle back pipe, before the muffler, then yes it is about 3"..

If you are referring to the midpipes, there is NO 3" pipe on the midpipes themselves.. You sound confused what is the midpipe and what is the axle back section..
I'm not confused lol

Well, to answer all this, what is the size of the last part of the stock midpipe you took out? 2,75 or 3''? Then we'll know!

Thanks in advance!!
Appreciate 0
      03-05-2012, 11:23 PM   #96
-Z-
Second Lieutenant
2

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


Posts: 268
iTrader: (0)

Quote:
Originally Posted by ianf View Post
I understood that the N55 mid pipes where 2.75", while MadDad's are 3". Not referring to the ends though.

See here: http://www.daddysscp.com/product_p/md135mp.htm
this...

Appreciate 0
      03-05-2012, 11:31 PM   #97
Papethova
Brigadier General
63

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


Posts: 3,037
iTrader: (1)

Quote:
Originally Posted by nicoz View Post
?
I forgot the numbers now but the bottleneck would be the 3" pipe at the rear. Dual 2.5s or 2.75s will get restricted at a single 3, obviously dual 3s will too. This is strictly volume measurements.
Appreciate 0
      03-05-2012, 11:39 PM   #98
nicoz
Private First Class
4

 
Drives: 1M
Join Date: May 2011
Location: Montreal


Posts: 120
iTrader: (0)

Quote:
Originally Posted by Papethova View Post
I forgot the numbers now but the bottleneck would be the 3" pipe at the rear. Dual 2.5s or 2.75s will get restricted at a single 3, obviously dual 3s will too. This is strictly volume measurements.
That's what I thought!
Appreciate 0
      03-07-2012, 03:35 PM   #99
Ian///M
Major General
No_Country
81

 
Ian///M's Avatar
 
Drives: 1M
Join Date: Mar 2011
Location: Melbourne


Posts: 6,266
iTrader: (0)

Quote:
Originally Posted by Papethova View Post
I forgot the numbers now but the bottleneck would be the 3" pipe at the rear. Dual 2.5s or 2.75s will get restricted at a single 3, obviously dual 3s will too. This is strictly volume measurements.
True. MD's have slightly smoother bends, but nothing in it really, more on what sound you want. Now that they have got some miles on them there is even more nice burble on over-run. It is a fair bit louder than stock though especially on start up and in confined areas.

Last edited by Ian///M; 03-08-2012 at 06:10 AM.
Appreciate 0
      03-07-2012, 07:48 PM   #100
RPM90
Major General
103

 
Drives: 335i Msport w/sport AT
Join Date: Mar 2006
Location: Chicago


Posts: 6,095
iTrader: (1)

Quote:
Originally Posted by NC View Post
FYI - I was quoted the following on my order from http://getbmwparts.com/:

Items Total: $333.22
Shipping Method: Standard Ground - US Only
Shipping: $24.95
Handling Fee: $3.95
Order Total: $362.12

Now they are telling me it's $75.00 for shipping even though they provided the quote above. Be warned.
That's a great price for this setup.

I was thinking that an exhaust shop could easily cut out the secondary cats and weld in a same diameter tube in it's place.
It would probably cost less, but at about $370 it's not bad.

Since this won't throw codes, I'll ask a shop how much to cut and weld.
Can't be too pricey and no need to disconnect what's their, unless of course they can't get to it while the system is in place.

Those that have done this yourselves, does it look like there's room to cut and weld in a couple straight pieces while everything is still bolted up OEM?
Appreciate 0
      03-07-2012, 08:04 PM   #101
NC
Private
United_States
0

 
Drives: BSM 1M
Join Date: Sep 2007
Location: NC


Posts: 90
iTrader: (0)

Quote:
Originally Posted by RPM90 View Post
That's a great price for this setup.

I was thinking that an exhaust shop could easily cut out the secondary cats and weld in a same diameter tube in it's place.
It would probably cost less, but at about $370 it's not bad.

Since this won't throw codes, I'll ask a shop how much to cut and weld.
Can't be too pricey and no need to disconnect what's their, unless of course they can't get to it while the system is in place.

Those that have done this yourselves, does it look like there's room to cut and weld in a couple straight pieces while everything is still bolted up OEM?
I have been emailing back and forth with them and there is a shipping policy that states mid-pipes are a flat rate $75 shipping cost regardless of what they email quoted price states. Apparently there are limitations to the software the ties shipping costs to certain parts. I agree that even with the $75 shipping cost their price is somewhat competitive. My dealer quoted something around $433.

In regards to having a shop cut out the secondary cats on the original pipe I guess you could do that but I'd rather keep the original and buy a new N55 mid-pipe. Best of luck in whichever direction you choose.
Appreciate 0
      03-08-2012, 11:58 PM   #102
CarJunkie
Lieutenant
7

 
Drives: Valencia Orange 1-Series M
Join Date: Nov 2011
Location: Tri-Cities, Washington


Posts: 555
iTrader: (0)

Quote:
Originally Posted by ianf View Post

Zuzu, who has the N55 mids, and I will try do a side by side video soon
I will watch for it . . . having a hard time deciding.
Appreciate 0
      03-09-2012, 03:19 AM   #103
mm1
Private
0

 
Drives: exE90 M3/ now1M
Join Date: May 2011
Location: Riga, Latvia


Posts: 94
iTrader: (0)

I just did the swap to N55 mids, happy for now, can`t say that the drone is gone completly, now it`s just in a narrower rpm range. Sounds maybe a few % louder, cold start beeing a highlight. Now waiting for a back box, my neighbours aren`t gona be happy.
Appreciate 0
      03-17-2012, 03:10 PM   #104
mojo_78613
Private
United_States
2

 
mojo_78613's Avatar
 
Drives: 2011 BMW 1M Coupe
Join Date: Apr 2010
Location: Cedar Park, TX


Posts: 94
iTrader: (0)

Sounds like a reasonable mod using an OEM part. I wonder why BMW did not consider using the N55 midpipe when this car was being tested and produced..... Is this an easy DIY or should one have a shop install? I saw a video posted by one of the vendors for someone who installed an N55 midpipe, Akrapovic slip on, and a wireless kit.... This set up sounds really good..... If I were to do this, I would have skipped the wireless kit... I'm also trying to find reviews for Ramus's Street Race which is slightly cheaper than Akrapovic's Slip on.... Any thoughts or pointers would be greatly appreciated... One thing that bothers me with some of the vendors, is they are trying to sell high performance exhaust systems and avoid providing facts that would help sell their item... Sorry for going off topic here... Cheers!
Appreciate 0
      03-17-2012, 04:54 PM   #105
EINSER M
Major General
United_States
90

 
EINSER M's Avatar
 
Drives: 2011 E82 1M
Join Date: May 2006
Location: 34.1064 N, 117.5922 W, 300m altitude


Posts: 5,368
iTrader: (38)

Garage List
Send a message via AIM to EINSER M Send a message via MSN to EINSER M Send a message via Yahoo to EINSER M
Quote:
Originally Posted by mojo_78613 View Post
Sounds like a reasonable mod using an OEM part. I wonder why BMW did not consider using the N55 midpipe when this car was being tested and produced..... Is this an easy DIY or should one have a shop install? I saw a video posted by one of the vendors for someone who installed an N55 midpipe, Akrapovic slip on, and a wireless kit.... This set up sounds really good..... If I were to do this, I would have skipped the wireless kit... I'm also trying to find reviews for Ramus's Street Race which is slightly cheaper than Akrapovic's Slip on.... Any thoughts or pointers would be greatly appreciated... One thing that bothers me with some of the vendors, is they are trying to sell high performance exhaust systems and avoid providing facts that would help sell their item... Sorry for going off topic here... Cheers!
if im not mistaken the N54 pollutes more than the N55 that is why secondary cats are needed in the N54 setup.
__________________
THE EINSER M BUILD
CLICK HERE: EINSER M BUILD

Appreciate 0
      03-18-2012, 09:09 AM   #106
mojo_78613
Private
United_States
2

 
mojo_78613's Avatar
 
Drives: 2011 BMW 1M Coupe
Join Date: Apr 2010
Location: Cedar Park, TX


Posts: 94
iTrader: (0)

Thanks for the reply. I guess it's safe to keep the OEM (N54) midpipe just from an environmental standpoint... Not sure whether people who swapped their midpipes have experienced any odors due to the lack of secondary cats... Cheers!


Quote:
Originally Posted by EINSER M View Post
if im not mistaken the N54 pollutes more than the N55 that is why secondary cats are needed in the N54 setup.
Appreciate 0
      03-18-2012, 01:24 PM   #107
EINSER M
Major General
United_States
90

 
EINSER M's Avatar
 
Drives: 2011 E82 1M
Join Date: May 2006
Location: 34.1064 N, 117.5922 W, 300m altitude


Posts: 5,368
iTrader: (38)

Garage List
Send a message via AIM to EINSER M Send a message via MSN to EINSER M Send a message via Yahoo to EINSER M
Quote:
Originally Posted by mojo_78613 View Post
Thanks for the reply. I guess it's safe to keep the OEM (N54) midpipe just from an environmental standpoint... Not sure whether people who swapped their midpipes have experienced any odors due to the lack of secondary cats... Cheers!
i put the N55 mids on my 1M and no change as far as that was concerned
i'd get gas smell on a catless downpipes setup for sure though
__________________
THE EINSER M BUILD
CLICK HERE: EINSER M BUILD

Appreciate 0
      03-19-2012, 10:48 AM   #108
pearlwhites
First Lieutenant
United_States
4

 
pearlwhites's Avatar
 
Drives: 1M, 06 CTT, 07 A8L
Join Date: Mar 2007
Location: NY


Posts: 386
iTrader: (3)

Anyone here running the N55 midpipes with a set of catless dp's?
Appreciate 0
      03-19-2012, 01:11 PM   #109
Pete_vB
Captain
United_States
21

 
Pete_vB's Avatar
 
Drives: '69 GT3, 1M, 912, R32
Join Date: Nov 2010
Location: SF Bay Area, Shenzhen, Oman


Posts: 837
iTrader: (0)

Quote:
Originally Posted by mojo_78613 View Post
I wonder why BMW did not consider using the N55 midpipe when this car was being tested and produced.....
The N55 was designed as a less expensive replacement for the N54. The mission was to duplicate the performance while reducing costs. Cats are expensive, so the N55 was engineered to allow the use of a single cat while still making emissions. Twin turbos and forged internals were also dropped for the N55, further reducing cost but reducing the strength and performance potential, which is why the factory chose the N54 as a base for tuning with the 1M.
__________________
1M, 1969 Porsche 911 w/ 997 GT3 Cup Motor (435hp & 2,100 lbs)
Appreciate 0
      03-24-2012, 01:08 AM   #110
Denso
Captain
18

 
Denso's Avatar
 
Drives: AW 1M
Join Date: Oct 2010
Location: Gods Country Scotland


Posts: 820
iTrader: (0)

Quote:
Originally Posted by Aussie_in_London View Post
Just ordered mine, will fit sometime next week........
Hi Mate,

Have you fitted this now and do you notice any difference ? I am back next weekend and getting mines fitted a week on Monday. Would appreciate your thoughts
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
Forum Jump


All times are GMT -5. The time now is 01:16 PM.




1addicts
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