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 > QUESTION: Straight midpipe or X-pipe w/connecting pipes?



Reply
 
Thread Tools Search this Thread
      02-18-2011, 12:48 AM   #1
jahmed78
Second Lieutenant
jahmed78's Avatar
United_States
41
Rep
299
Posts

Drives: 2007 BMW e90 335i
Join Date: Oct 2010
Location: San Diego, CA

iTrader: (6)

Question QUESTION: Straight midpipe or X-pipe w/connecting pipes?

I'm about to get a Procede tune and I'm currently running stock downpipes, midpipes, and a Remus race axle-back exhaust.

I understand downpipes are a great upgrade for performance but I defintely won't pass smog. So I'm thinking about freeing up some air flow in the mid section and getting a better sound by replacing the stock midpipe which has the secondary cats and resonator.

Do I go with straight midpipes (Borla or SuperSprint) or an X-pipe with connecting pipes? I'm not sure what the diff would be but the x-pipe set up is more expensive?

__________________
2007 335i e90 - black on black w/wood trim and iDrive

19" BMW M-Performance wheels, ST coilovers, m3 rep front bumper and skirts, CF Hamann rep diffuser, Remus Race quad exhaust, aFe DCI, LED angel eyes & DRL kit,
Appreciate 0
      02-18-2011, 12:55 AM   #2
michaelthepsycho
Lieutenant Colonel
michaelthepsycho's Avatar
Taiwan
67
Rep
1,647
Posts

Drives: 11 Montego Blue E90 335i Step
Join Date: May 2009
Location: CA

iTrader: (4)

Straight. No point trying to scavenge when increased flow will help relieve turbo stress.
__________________
Former car
2011 BMW 335i Step - Montego Blue / Chestnut Brown
Appreciate 0
      02-18-2011, 01:45 AM   #3
gaifaun
Major
gaifaun's Avatar
Canada
191
Rep
1,134
Posts

Drives: E90 335i LCI
Join Date: Apr 2007
Location: Greater Vancouver

iTrader: (14)

Garage List
effects are minimal so go with straight pipes; its cheaper too
__________________
I can help with Coding in Vancouver. PM me
Appreciate 0
      02-18-2011, 01:55 AM   #4
jahmed78
Second Lieutenant
jahmed78's Avatar
United_States
41
Rep
299
Posts

Drives: 2007 BMW e90 335i
Join Date: Oct 2010
Location: San Diego, CA

iTrader: (6)

any recommendations on a brand of straight pipes?
__________________
2007 335i e90 - black on black w/wood trim and iDrive

19" BMW M-Performance wheels, ST coilovers, m3 rep front bumper and skirts, CF Hamann rep diffuser, Remus Race quad exhaust, aFe DCI, LED angel eyes & DRL kit,
Appreciate 0
      02-18-2011, 01:59 AM   #5
gaifaun
Major
gaifaun's Avatar
Canada
191
Rep
1,134
Posts

Drives: E90 335i LCI
Join Date: Apr 2007
Location: Greater Vancouver

iTrader: (14)

Garage List
go to your muffler shop and get custom pipes!

no one blows $300 on borla or RR midpipes
__________________
I can help with Coding in Vancouver. PM me
Appreciate 0
      02-18-2011, 02:01 AM   #6
jahmed78
Second Lieutenant
jahmed78's Avatar
United_States
41
Rep
299
Posts

Drives: 2007 BMW e90 335i
Join Date: Oct 2010
Location: San Diego, CA

iTrader: (6)

how much would that cost?
__________________
2007 335i e90 - black on black w/wood trim and iDrive

19" BMW M-Performance wheels, ST coilovers, m3 rep front bumper and skirts, CF Hamann rep diffuser, Remus Race quad exhaust, aFe DCI, LED angel eyes & DRL kit,
Appreciate 0
      02-18-2011, 03:40 AM   #7
gaifaun
Major
gaifaun's Avatar
Canada
191
Rep
1,134
Posts

Drives: E90 335i LCI
Join Date: Apr 2007
Location: Greater Vancouver

iTrader: (14)

Garage List
if you are just cutting exactly where the secondary cats are, and welding straight pipes on then its gonna be like what? $60 bucks?

if you are bending new pipes from the downpipe to the secondary cats (basically creating your own midpipes) it would cost you around $150-200?
__________________
I can help with Coding in Vancouver. PM me
Appreciate 0
Reply

Bookmarks

Tags
exhaust, midpipe, x-pipe

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 04:06 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, 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