E90Post
 


Extreme Powerhouse
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > r mid pipes worth it



Reply
 
Thread Tools Search this Thread
      06-28-2009, 03:37 PM   #1
CJ_LO
Lieutenant
Canada
26
Rep
406
Posts

Drives: X5 35I
Join Date: Jun 2009
Location: Vancouver

iTrader: (1)

Garage List
2014 F15 X5 35I  [0.00]
r mid pipes worth it

just saw the topic on r the downpipes worth it.
so now .. just wondering what about the mid pipes.
Appreciate 0
      06-28-2009, 03:49 PM   #2
Zeph
Major
United_States
27
Rep
1,410
Posts

Drives: 2008 E92 335i 6MT SGM CR/BD
Join Date: Jul 2008
Location: Southeast USA

iTrader: (0)

I don't see why people would buy mid pipes personally. If you want to keep your cats and get new mufflers, then get what they are calling an axle-back "exhaust". If you want to delete the 2ndary cats then get a full exhaust (DP-back). If you just want to keep your "stock exhaust" and get rid of the 2ndary cats hell just take the exhaust off and knock all the stuff out of your cats (or just have simple pipes welded on in place of the stock cats you just cut off.

I just don't see where buying mid-pipes would ever be in demand
Appreciate 0
      06-28-2009, 04:20 PM   #3
persian54
Lieutenant General
persian54's Avatar
United_States
923
Rep
15,818
Posts

Drives: M760/G83M4
Join Date: Jun 2009
Location: The Valley, SoCal

iTrader: (298)

aren't midpipes illegal on the road?
Appreciate 0
      06-28-2009, 04:26 PM   #4
PaulBailey@ltbmw
General
PaulBailey@ltbmw's Avatar
Italy
663
Rep
26,878
Posts

Drives: 2-325 330 2-335 2-Z4 2-135 X5d
Join Date: Mar 2007
Location: Huntington Beach, CA

iTrader: (34)

Garage List
Quote:
Originally Posted by persian54 View Post
aren't midpipes illegal on the road?
Nearly Every mod is illegal on the road.
Intake, exhaust, mid pipes, down pipes, etc.
At least it is here in CA
Appreciate 0
      06-28-2009, 04:32 PM   #5
persian54
Lieutenant General
persian54's Avatar
United_States
923
Rep
15,818
Posts

Drives: M760/G83M4
Join Date: Jun 2009
Location: The Valley, SoCal

iTrader: (298)

Quote:
Originally Posted by xPaulBaiLeyx View Post
Nearly Every mod is illegal on the road.
Intake, exhaust, mid pipes, down pipes, etc.
At least it is here in CA
exhaust is only illegal if the sound is too loud (which almost usually always is

intake is not illegal unless it produces abnormal loud noise (which they usually don't)

DP and MP I'm not sure on.. maybe regarding smog regulations...

how could an intake be illegal? even here in cali...
Appreciate 0
      06-28-2009, 04:37 PM   #6
CJ_LO
Lieutenant
Canada
26
Rep
406
Posts

Drives: X5 35I
Join Date: Jun 2009
Location: Vancouver

iTrader: (1)

Garage List
2014 F15 X5 35I  [0.00]
smog? you mean black smokes?
Appreciate 0
      06-28-2009, 04:57 PM   #7
persian54
Lieutenant General
persian54's Avatar
United_States
923
Rep
15,818
Posts

Drives: M760/G83M4
Join Date: Jun 2009
Location: The Valley, SoCal

iTrader: (298)

catless are illegal in CA (i know nothing of other states)
Appreciate 0
      06-28-2009, 11:42 PM   #8
OGBimmerGuy
New Member
0
Rep
14
Posts

Drives: Black E36 Sedan & E92 Coupe
Join Date: Jun 2009
Location: Irvine, CA

iTrader: (0)

Quote:
Originally Posted by Zeph View Post
I don't see why people would buy mid pipes personally. If you want to keep your cats and get new mufflers, then get what they are calling an axle-back "exhaust". If you want to delete the 2ndary cats then get a full exhaust (DP-back). If you just want to keep your "stock exhaust" and get rid of the 2ndary cats hell just take the exhaust off and knock all the stuff out of your cats (or just have simple pipes welded on in place of the stock cats you just cut off.

I just don't see where buying mid-pipes would ever be in demand
I think it's probably because people want to have the sleeper OEM look - that and it is much more inexpensive than a full cat-back. Even though it may initially be a slight gain of 10-15whp with the midpipes, people forget the tuning potential that comes along with it. Those cats build back pressure and if they are not their your turbos will run more efficiently = for aggressive tuning and power.
Appreciate 0
      06-28-2009, 11:44 PM   #9
OGBimmerGuy
New Member
0
Rep
14
Posts

Drives: Black E36 Sedan & E92 Coupe
Join Date: Jun 2009
Location: Irvine, CA

iTrader: (0)

Also, if you have the slip joints made for the midpipes I could see it being pretty easy to switch back to stock...Just slip of the catless and slip in the oem pipes.
Appreciate 0
      06-29-2009, 12:46 AM   #10
CJ_LO
Lieutenant
Canada
26
Rep
406
Posts

Drives: X5 35I
Join Date: Jun 2009
Location: Vancouver

iTrader: (1)

Garage List
2014 F15 X5 35I  [0.00]
so mid-pipes are easy to install and uninstall back to stock?
Appreciate 0
      06-29-2009, 12:58 AM   #11
lpphreakx06
Professional Moose Racer
lpphreakx06's Avatar
Vietnam
316
Rep
7,509
Posts

Drives: SG 335i E92 RIP + 2015 SS M3
Join Date: Jul 2008
Location: Bellevue, Wa

iTrader: (25)

Not really.
__________________
Visit my blog anytime: http://www.sfpayments.com

BMW Dream Team PNW Chapter, member #1
|HP Autowerks | AR DESIGN | BMW PERFORMANCE | STOP TECH | Volk Racing| AMS | ARKYM
Appreciate 0
      06-29-2009, 01:04 AM   #12
eazydoezit
Front Line Infantry
eazydoezit's Avatar
Mexico
33
Rep
404
Posts

Drives: e92 TT AW
Join Date: Apr 2008
Location: LA + The Bay

iTrader: (0)

Quote:
Originally Posted by i.hope. View Post
so mid-pipes are easy to install and uninstall back to stock?
There is no welding involved in installing the midpipes, but you do have to cut the stock exhaust. Now if you want to reinstall the stock cats then you need to weld your old pipes back on. Thats where the vendors get tricky on you saying "no welding required!!!" haha
Appreciate 0
Reply

Bookmarks


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 10:39 AM.




e90post
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