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
      09-05-2017, 06:16 AM   #1
kuuzu
New Member
1
Rep
17
Posts

Drives: E82 125i MSport
Join Date: Apr 2016
Location: Leicester UK

iTrader: (0)

125/8i Y Pipe

Hi all,

Has anyone replaced the mid-section resonator with a Y pipe?

https://imgur.com/a/LGEZ4

Want to know roughly what it would be like before I go ahead!

Planning on getting the 135i(N55) back box too afterwards.

Thanks

Kuuzu
Appreciate 0
      09-05-2017, 11:12 AM   #2
TheAxiom
Major General
TheAxiom's Avatar
Japan
1746
Rep
7,653
Posts

Drives: E92 Msport 6 Speed
Join Date: Nov 2013
Location: Florida

iTrader: (5)

Quote:
Originally Posted by kuuzu View Post
Hi all,

Has anyone replaced the mid-section resonator with a Y pipe?

https://imgur.com/a/LGEZ4

Want to know roughly what it would be like before I go ahead!

Planning on getting the 135i(N55) back box too afterwards.

Thanks

Kuuzu
Super Sprint has a Y pipe that they sell, and it's on sale. One of the member's chris82 has it, and speaks highly of it.
__________________
E92 Msport 6MT: 1mm Valvetronic lift adjusters, AA headers, SS section 2, AFE SI stage 2 intake, BPC ALFA N tune, BMW PE
Appreciate 0
      09-06-2017, 01:10 AM   #3
OneTwenty8i
Private First Class
2
Rep
110
Posts

Drives: 2013 128i
Join Date: Jul 2017
Location: East Bay

iTrader: (0)

I have my resonator deleted with a y pipe and I have a 135i muffler on my 128i. Once its warmed up and in sports mode, it sounds great but it isn't loud enough for me. I'm 19 so I'd like my car a little louder. Planning on getting my muffler deleted.
Appreciate 0
      09-06-2017, 04:36 AM   #4
kuuzu
New Member
1
Rep
17
Posts

Drives: E82 125i MSport
Join Date: Apr 2016
Location: Leicester UK

iTrader: (0)

Quote:
Originally Posted by OneTwenty8i View Post
I have my resonator deleted with a y pipe and I have a 135i muffler on my 128i.
Have you got any videos of this? Alot of 128i owners seem to do this
Appreciate 0
      09-06-2017, 03:00 PM   #5
OneTwenty8i
Private First Class
2
Rep
110
Posts

Drives: 2013 128i
Join Date: Jul 2017
Location: East Bay

iTrader: (0)

Quote:
Originally Posted by kuuzu View Post
Have you got any videos of this? Alot of 128i owners seem to do this
I don't have any videos right now but I might record some when I have time. The step up is a great way to make your car louder without it droning.
Appreciate 0
      09-06-2017, 03:46 PM   #6
sprp85
Second Lieutenant
South Korea
36
Rep
266
Posts

Drives: 2xN51s
Join Date: May 2014
Location: MD

iTrader: (3)

If you want volume and crackle/pop, do secondary cat delete PLUS resonator delete, followed by a 135i muffler.

The setup mentioned above does not sound like a modern BMW... (Could be a good or bad, depending on your preference) but very similar to older, E36 supersprint setup.
Appreciate 0
      09-07-2017, 04:25 AM   #7
supercati
New Member
supercati's Avatar
Spain
1
Rep
7
Posts

Drives: E81 130i 6MT
Join Date: Mar 2017
Location: Barcelona

iTrader: (0)

I did this to my Euro 130i (E81).

Here in Europe we don't have the secondary cats, so I went resonator delete (modified the stock one) + 135i N54 muffler / backbox.

Sound is really really great. Pops/crackle when releasing throttle, plus louder sound when acceleration. Overall, it just sound louder and a little bit more agressive, and on the other hand, if you just cruise around in a normal way, is still acceptable, almost no drone at highway, etc.

If I were you, I'd definitely go for: secondary cats delete, resonator delete (modified or YPipe), 135i N54/N55 muffler.
You could also use 135i N55 resonator and modify it to be like the BMW Performance (easy), and it will be like an Y Pipe.
__________________
2007 BMW 130i E81 (LCI) 6MT - Sparkling Graphite Metallic - Boston Terra
Appreciate 0
      09-14-2017, 08:47 PM   #8
German Straight-6
Banned
9
Rep
113
Posts

Drives: E92 328i & F10 535i
Join Date: Sep 2017
Location: Ontario

iTrader: (0)

Quote:
Originally Posted by sprp85 View Post
If you want volume and crackle/pop, do secondary cat delete PLUS resonator delete, followed by a 135i muffler.

The setup mentioned above does not sound like a modern BMW... (Could be a good or bad, depending on your preference) but very similar to older, E36 supersprint setup.
you will get the best sound by keeping the resonator
Appreciate 0
      09-14-2017, 10:29 PM   #9
sprp85
Second Lieutenant
South Korea
36
Rep
266
Posts

Drives: 2xN51s
Join Date: May 2014
Location: MD

iTrader: (3)

Quote:
Originally Posted by German Straight-6 View Post
you will get the best sound by keeping the resonator
"Best" sound depending on what you want.

And no, I personally do not like ricey fart cans either.

You tend to always say resonator delete will make a car sound like shit but its case by cases, so let's not generalize here.
Appreciate 0
      09-15-2017, 01:32 AM   #10
German Straight-6
Banned
9
Rep
113
Posts

Drives: E92 328i & F10 535i
Join Date: Sep 2017
Location: Ontario

iTrader: (0)

Quote:
Originally Posted by sprp85 View Post
"Best" sound depending on what you want.

And no, I personally do not like ricey fart cans either.

You tend to always say resonator delete will make a car sound like shit but its case by cases, so let's not generalize here.
I agree. But for our cars in particular, with the absolutely brilliant factory designed resonator, why the hell would you want to remove that? Youíd have to be insane. The res improves turbulent exhaust flow which is good for the engine while smoothing out the sound, getting rid of drone and rasp while tuning the exhaust more to sound how the engineers thought this engine should sound and let me tell you, they did a hell of a job with this resonator that everyoneís just cutting out. Iíve compared resonator vs no resonator on the n52 engine (n54 and n52 have almost the same resonator) and the difference is noticeable, you guys should try it yourselves.

But of course just like to mentioned to each their own. If you want an untuned exhaust note with drone then go ahead.

The general rule is that you want either a resonator or x-pipe. You lose 2-4ft/lb if you donít have one or the other. Thatís means you should NOT replace your resonator wth a y-pipe like the OP asked.
Appreciate 0
      09-15-2017, 02:12 AM   #11
OneTwenty8i
Private First Class
2
Rep
110
Posts

Drives: 2013 128i
Join Date: Jul 2017
Location: East Bay

iTrader: (0)

My car has a muffler delete and resonator delete now and it sounds great, but still not loud enough. Planning on removing the secondary cats soon and see how it sounds.
Appreciate 0
      09-15-2017, 03:33 PM   #12
chris82
Brigadier General
chris82's Avatar
United_States
261
Rep
3,122
Posts

Drives: around town (Philadelphia)
Join Date: Aug 2012
Location: a black coupe

iTrader: (6)

Garage List
2008 BMW 128i  [5.00]
Quote:
Originally Posted by supercati View Post
I did this to my Euro 130i (E81).

Here in Europe we don't have the secondary cats, so I went resonator delete (modified the stock one) + 135i N54 muffler / backbox.

Sound is really really great. Pops/crackle when releasing throttle, plus louder sound when acceleration. Overall, it just sound louder and a little bit more agressive, and on the other hand, if you just cruise around in a normal way, is still acceptable, almost no drone at highway, etc.

If I were you, I'd definitely go for: secondary cats delete, resonator delete (modified or YPipe), 135i N54/N55 muffler.
You could also use 135i N55 resonator and modify it to be like the BMW Performance (easy), and it will be like an Y Pipe.
The setup you mentioned is my favorite, it's one of the best sounds I've heard on this car. It's inexpensive as well; you can buy the Supersprint cat delete pipes and the Y pipe for the price of the BMW Performance muffler. And you can pick up a stock 135i muffler for $50. If you have a lift, you could probably do the install yourself as everything will fit together perfectly with only part of the pipe on the 135 muffler needing to be cut.
Appreciate 0
      09-15-2017, 06:47 PM   #13
sprp85
Second Lieutenant
South Korea
36
Rep
266
Posts

Drives: 2xN51s
Join Date: May 2014
Location: MD

iTrader: (3)

Quote:
Originally Posted by German Straight-6 View Post
I agree. But for our cars in particular, with the absolutely brilliant factory designed resonator, why the hell would you want to remove that? Youíd have to be insane. The res improves turbulent exhaust flow which is good for the engine while smoothing out the sound, getting rid of drone and rasp while tuning the exhaust more to sound how the engineers thought this engine should sound and let me tell you, they did a hell of a job with this resonator that everyoneís just cutting out. Iíve compared resonator vs no resonator on the n52 engine (n54 and n52 have almost the same resonator) and the difference is noticeable, you guys should try it yourselves.

But of course just like to mentioned to each their own. If you want an untuned exhaust note with drone then go ahead.

The general rule is that you want either a resonator or x-pipe. You lose 2-4ft/lb if you donít have one or the other. Thatís means you should NOT replace your resonator wth a y-pipe like the OP asked.
Maybe all of the above you've mentioned applies to your 528i slushbox but please don't generalize that any N52/51 BMWs will sound like shit, will drone, will sound raspy-.. with resonator delete.

As above poster mentioned, 2ndary delete + resonator delete paired with 135i back box is one of the most popular combo for this platform of cars with N52/N51s.. it will not add *drone* like you've mentioned and I can comment on this because I have the exact setup mentioned above. So in another word, "First hand feedback as an owner".
Appreciate 0
Post Reply

Bookmarks

Tags
125i, 135i, exhaust, muffler, resonator

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 -4. The time now is 05:49 AM.




1addicts
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, 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