F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20, N26, B46, B48 Turbo Engine / Drivetrain / Exhaust Modifications > 340i full exhaust on 328i
GetBMWParts
Post Reply
 
Thread Tools Search this Thread
      07-16-2019, 04:56 PM   #1
328iking
Private First Class
24
Rep
199
Posts

Drives: 328i
Join Date: Apr 2019
Location: Ipswich, Suffolk

iTrader: (0)

340i full exhaust on 328i

Was planning on chopping the rear box off my 328i and mating the 340i rear dual box. I know the 340i pipes is slightly bigger and easily fix by a sleeve. But my question is, I have bought the whole 340i, used (only done 5k miles) system from the cat back, can I fix the whole system instead of cutting it all up?
Appreciate 0
      07-17-2019, 08:50 AM   #2
CandyRedRC46
Lieutenant
CandyRedRC46's Avatar
242
Rep
420
Posts

Drives: 2013 328i
Join Date: Feb 2018
Location: Florida

iTrader: (0)

It is not going to bolt on, if thats what you are asking, but it should fit with minimal modifications. You will probably have to cut and weld a few sections of your down pipe and the 340i exhaust, but it will be a nice upgrade and complement to an upgraded down pipe if done right. I would just buy a high flow downpipe, remove your entire factory exhaust/downpipe, install the upgraded down pipe, then take your car and the 340i exhaust to a competent exhaust shop and have them make it work. While they are merging everything together, they can cut off the 2.25" outlet of the downpipe, so you can have a full, true 3" exhaust.
Appreciate 0
      07-17-2019, 11:56 AM   #3
328iking
Private First Class
24
Rep
199
Posts

Drives: 328i
Join Date: Apr 2019
Location: Ipswich, Suffolk

iTrader: (0)

Cheers mate.

Am thinking maybe to cut off the part to the cat from the 328i then replace that part to 340i system

I will be adding a dp in future but for my 328i as the 340i upgraded dp won't fit? Or am I wrong in assuming that?
Appreciate 0
      07-17-2019, 01:06 PM   #4
CandyRedRC46
Lieutenant
CandyRedRC46's Avatar
242
Rep
420
Posts

Drives: 2013 328i
Join Date: Feb 2018
Location: Florida

iTrader: (0)

340i downpipe will not fit a 328i.
I wouldn't cut any of your factory exhaust, just remove your entire exhaust in one piece and set it aside.
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 10:37 AM.




f30post
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