E90Post
 


The Tire Rack
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > e90 exhaust pipe diameter (right before muffler)



Reply
 
Thread Tools Search this Thread
      10-29-2018, 11:52 AM   #1
porsche959
Captain
303
Rep
642
Posts

Drives: porsche
Join Date: Jul 2018
Location: chicago

iTrader: (0)

e90 exhaust pipe diameter (right before muffler)

anyone know what the pipe diameter is for this part? right before the muffler?

2.5 inches? 2.75? 3?

Not sure if its reflected in the pic, but it would be for a 2006 325i.

Thanks,

Appreciate 1
      10-29-2018, 02:21 PM   #2
Taskmaster
Banned
Japan
2316
Rep
9,158
Posts

Drives: M235i 6MT / E92 328 Msport 6MT
Join Date: Nov 2013
Location: Florida

iTrader: (6)

I thought I measured about 2.75" on my performance exhaust. No harm in going larger though.
Appreciate 0
      10-29-2018, 03:12 PM   #3
hassmaschine
Major General
United_States
2937
Rep
6,133
Posts

Drives: "NBO" 330i
Join Date: Jun 2014
Location: earth

iTrader: (0)

is it dual walled after the cats? probably it's close to 2.5" ID, however after the merge/cats it's not going to hurt to go a little bigger.
Appreciate 0
      10-30-2018, 09:45 PM   #4
Phyrexia
Resident Pedant
United_States
452
Rep
776
Posts

Drives: '15 335i 8AT
Join Date: Nov 2017
Location: Limbo

iTrader: (1)

It is 63.5mm / 2.5" OD coming into the back of the stock muffler (and into the back of the PE muffler)
__________________
'15 F30 335i 8AT Estoril II/Black (12.218 @ 114.94mph)
MHD Stage 2+ / xHP Stage 3 / M-Goodies / K&N Filter / ER CP / CSF IC / NGK 97506 / ER DP / Michelin A/S 3+
Appreciate 1
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 12:53 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, 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