THE LARGEST BMW 2-SERIES FORUM ON THE PLANET
2Addicts
2Addicts
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
2Addicts | BMW 2-Series forum Technical Topics N55 (M235i) Engine, Transmission, Exhaust, Tuning Downpipe Options

Post Reply
 
Thread Tools Search this Thread
      07-05-2014, 09:22 AM   #1
abirmaher
Lieutenant Colonel
abirmaher's Avatar
United_States
567
Rep
1,934
Posts

Drives: 2018 BMW M2 (BSM/ 6SPD)
Join Date: Feb 2010
Location: Miami, FL

iTrader: (13)

Garage List
2018 BMW M2  [0.00]
2014 BMW M235i  [3.50]
Downpipe Options

Hi everyone,

I'm looking to order a catless DP for my M235i very soon. I've seen alot about the ER one for the f30 but I was wondering what other choice there was out there?other companies or anything like that? I know Meisterschaft has one but it's crazy expensive so I'm avoiding that.
__________________
Follow my build on Instagram @_m0010 | Build Thread: https://f87.bimmerpost.com/forums/sh....php?t=1685998
Appreciate 0
      07-05-2014, 09:44 AM   #2
Cripple
Captain
Cripple's Avatar
82
Rep
777
Posts

Drives: 12' 335is
Join Date: Dec 2012
Location: Canada

iTrader: (4)

The downpipe from ER is of great quality. I have one, no rattles, no exhaust leak perfect fitment. For $300 its well worth the money, inexpensive downpipe to say the least. I am used to $800 DP's...
__________________
14' M235I | BMW Performance Exhaust | BMW Performance Diffuser | BMW Performance Carbon Interior | ER DP |
JB4 S2 | BC Forged HB29's | N54Tuning.com | getBMWparts.com

Current: 2015 Cayman S on HRE P101
Appreciate 0
      07-05-2014, 10:49 AM   #3
patbrass
Private First Class
19
Rep
192
Posts

Drives: M2 LBB, 6MT
Join Date: Apr 2014
Location: Seattle, WA

iTrader: (0)

Ok, I need to ask a few noob (borderline dumb) questions. What exactly does a catless downpipe do? Is it just making the exhaust sound louder? More HPs? Do you need the M-Perf Exhaust first? Can this void your warranty? Is this an issue for a lease? Thanks!
Appreciate 0
      07-05-2014, 11:24 AM   #4
r33_RGSport
Lieutenant General
r33_RGSport's Avatar
United_States
5703
Rep
13,805
Posts

Drives: 997.1 C4S / F39 X2 / F97 X3MC
Join Date: Oct 2009
Location: So. Cal

iTrader: (4)

Quote:
Originally Posted by patbrass View Post
Ok, I need to ask a few noob (borderline dumb) questions. What exactly does a catless downpipe do? Is it just making the exhaust sound louder? More HPs? Do you need the M-Perf Exhaust first? Can this void your warranty? Is this an issue for a lease? Thanks!
Here are the answers for your questions.

Catless downpipe gives you less restriction on the exhaust flow, which in result gives your more hp.

It does make the exhaust sound louder if you have an exhaust upgrade. Otherwise, like in my case, F10 528i with ER downpipe and stock exhaust, it didn't change the exhaust sound.
Of course you don't get as much hp gain compares to downpipe with cat-back exhaust system. Which this will also explains whether you need the MPE first.

If you are worry about warranty and issue on the lease, I would suggest you to keep the car stock.

I have BMS JB4, coilover, catless downpipe on my F10 and BMS JB4, Brembo, lowering spring on my F15. I always bring my car in for a service with those attached.

Oh, on the side note. Not all mods are street legal.
__________________
Email: sales@rgsport.com === IG: RGSport_USA

== July 4th Special ==
$100 off RaceChip GTS & GTS Black - until July 9th
10% off on Akrapovic exhaust system - until July 31st
Appreciate 0
      07-05-2014, 12:35 PM   #5
abirmaher
Lieutenant Colonel
abirmaher's Avatar
United_States
567
Rep
1,934
Posts

Drives: 2018 BMW M2 (BSM/ 6SPD)
Join Date: Feb 2010
Location: Miami, FL

iTrader: (13)

Garage List
2018 BMW M2  [0.00]
2014 BMW M235i  [3.50]
Quote:
Originally Posted by Cripple
The downpipe from ER is of great quality. I have one, no rattles, no exhaust leak perfect fitment. For $300 its well worth the money, inexpensive downpipe to say the least. I am used to $800 DP's...
Where did you find it for 300?
__________________
Follow my build on Instagram @_m0010 | Build Thread: https://f87.bimmerpost.com/forums/sh....php?t=1685998
Appreciate 0
      07-05-2014, 02:10 PM   #6
Cripple
Captain
Cripple's Avatar
82
Rep
777
Posts

Drives: 12' 335is
Join Date: Dec 2012
Location: Canada

iTrader: (4)

Opps.
http://n54tuning.com/index.php?_a=vi...&productId=128

He had a group buy and I think we paid like $400 each shipped.

Still, even at $450 it's a steal...
__________________
14' M235I | BMW Performance Exhaust | BMW Performance Diffuser | BMW Performance Carbon Interior | ER DP |
JB4 S2 | BC Forged HB29's | N54Tuning.com | getBMWparts.com

Current: 2015 Cayman S on HRE P101
Appreciate 0
      07-05-2014, 05:21 PM   #7
alz0rz
What goes here?
alz0rz's Avatar
330
Rep
1,281
Posts

Drives: 2019 F90 M5 Competition
Join Date: Aug 2011
Location: Indy

iTrader: (4)

Garage List
2016 BMW M3  [0.00]
2014 BMW M235i  [0.00]
Could the CEL attributed to a removed cat be disabled using the JB4?
__________________
2019 F90 M5 Competition

GBNF:
2016 F80 M3
2014 F22 M235i
Appreciate 0
      07-05-2014, 05:38 PM   #8
abirmaher
Lieutenant Colonel
abirmaher's Avatar
United_States
567
Rep
1,934
Posts

Drives: 2018 BMW M2 (BSM/ 6SPD)
Join Date: Feb 2010
Location: Miami, FL

iTrader: (13)

Garage List
2018 BMW M2  [0.00]
2014 BMW M235i  [3.50]
Quote:
Originally Posted by alz0rz
Could the CEL attributed to a removed cat be disabled using the JB4?
Don't know for a fact on this but I didn't this with my 135 for a while with no problems. The jb4 allows you to auto clear tuner codes which takes care of this. I would imagine that this would do that.
__________________
Follow my build on Instagram @_m0010 | Build Thread: https://f87.bimmerpost.com/forums/sh....php?t=1685998
Appreciate 0
      07-05-2014, 07:54 PM   #9
JustinCredibleM
Second Lieutenant
39
Rep
287
Posts

Drives: '15 GT-R, '02 996TT
Join Date: Mar 2014
Location: Las Vegas, NV | San Diego, CA

iTrader: (0)

Quote:
Originally Posted by alz0rz View Post
Could the CEL attributed to a removed cat be disabled using the JB4?
You can disable it with the JB4, however it needs to be the "stage 2" JB4, not the "stage 1".
Appreciate 0
      07-05-2014, 07:57 PM   #10
alz0rz
What goes here?
alz0rz's Avatar
330
Rep
1,281
Posts

Drives: 2019 F90 M5 Competition
Join Date: Aug 2011
Location: Indy

iTrader: (4)

Garage List
2016 BMW M3  [0.00]
2014 BMW M235i  [0.00]
Quote:
Originally Posted by JustinCredibleM View Post
You can disable it with the JB4, however it needs to be the "stage 2" JB4, not the "stage 1".
Awesome!!.. Is that something that is done by default or do I have to get special tuning done? And by whom?

What is the difference between the Stage 2 JB4 and a configuration using the EWG harness for finer control? Is that something to tune for or does the Jb4 just know to take advantage of it?
__________________
2019 F90 M5 Competition

GBNF:
2016 F80 M3
2014 F22 M235i
Appreciate 0
      07-06-2014, 12:58 AM   #11
JustinCredibleM
Second Lieutenant
39
Rep
287
Posts

Drives: '15 GT-R, '02 996TT
Join Date: Mar 2014
Location: Las Vegas, NV | San Diego, CA

iTrader: (0)

Quote:
Originally Posted by alz0rz View Post
Awesome!!.. Is that something that is done by default or do I have to get special tuning done? And by whom?

What is the difference between the Stage 2 JB4 and a configuration using the EWG harness for finer control? Is that something to tune for or does the Jb4 just know to take advantage of it?
The auto-clear is done by default and I believe it explains it on the JB4 website.

EWG harness gives more control over higher boost levels because its required to manipulate the boost when its 4+ psi above stock. The JB4 will take advantage of it automatically once you connect it and set it up within the program.
Appreciate 0
      07-06-2014, 09:54 PM   #12
Shankska
Captain
Shankska's Avatar
United_States
399
Rep
623
Posts

Drives: 2019 BMW M2 Competition
Join Date: Apr 2014
Location: Kansas City

iTrader: (0)

Garage List
2019 BMW M2 CS  [0.00]
2016 BMW M2  [0.00]
2014 BMW M235i  [0.00]
Wonder if they would do another group buy on these? I am thinking about getting one soon. Will def purchase this and jb4 stage 2 at same time from n54 tuning.
Appreciate 0
      07-11-2014, 06:24 PM   #13
mike@x-ph.com
Joint Chiefs of Staff
mike@x-ph.com's Avatar
United_States
12056
Rep
130,309
Posts

Drives: 2007 e92 335i / 2013 F30 328
Join Date: Sep 2013
Location: Las Vegas

iTrader: (20)

+1 for ER DP
Appreciate 0
      07-12-2014, 11:20 AM   #14
dharo1
Captain
dharo1's Avatar
United_States
214
Rep
661
Posts

Drives: Previous: F22 M235i ; F80 M3 ;
Join Date: Mar 2014
Location: El Paso, Texas

iTrader: (1)

Quote:
Originally Posted by Shankska
Wonder if they would do another group buy on these? I am thinking about getting one soon. Will def purchase this and jb4 stage 2 at same time from n54 tuning.
Same here!!! DP and JB4
Appreciate 0
      07-12-2014, 10:53 PM   #15
alz0rz
What goes here?
alz0rz's Avatar
330
Rep
1,281
Posts

Drives: 2019 F90 M5 Competition
Join Date: Aug 2011
Location: Indy

iTrader: (4)

Garage List
2016 BMW M3  [0.00]
2014 BMW M235i  [0.00]
I'm also down for both.. let's do it!
__________________
2019 F90 M5 Competition

GBNF:
2016 F80 M3
2014 F22 M235i
Appreciate 0
      07-13-2014, 02:11 AM   #16
dharo1
Captain
dharo1's Avatar
United_States
214
Rep
661
Posts

Drives: Previous: F22 M235i ; F80 M3 ;
Join Date: Mar 2014
Location: El Paso, Texas

iTrader: (1)

1. dharo1
2.
Appreciate 0
      07-13-2014, 04:26 AM   #17
PKAHH
New Member
PKAHH's Avatar
United_States
0
Rep
27
Posts

Drives: 2014 328i
Join Date: Jun 2014
Location: Colorado Springs

iTrader: (0)

1. dharo1
2. Nalinax
3.

So, real noob moment here, is there a big price difference for the group buy or should I just buy solo if I am located in Europe?
Appreciate 0
      07-13-2014, 09:15 AM   #18
alz0rz
What goes here?
alz0rz's Avatar
330
Rep
1,281
Posts

Drives: 2019 F90 M5 Competition
Join Date: Aug 2011
Location: Indy

iTrader: (4)

Garage List
2016 BMW M3  [0.00]
2014 BMW M235i  [0.00]
1. dharo1
2. Nalinax
3. alz0rz
4.
__________________
2019 F90 M5 Competition

GBNF:
2016 F80 M3
2014 F22 M235i
Appreciate 0
      07-13-2014, 09:43 AM   #19
dharo1
Captain
dharo1's Avatar
United_States
214
Rep
661
Posts

Drives: Previous: F22 M235i ; F80 M3 ;
Join Date: Mar 2014
Location: El Paso, Texas

iTrader: (1)

Quote:
Originally Posted by nalinax
1. dharo1
2. Nalinax
3.

So, real noob moment here, is there a big price difference for the group buy or should I just buy solo if I am located in Europe?
Likely a difference in shipping cost
Appreciate 0
      07-13-2014, 11:25 AM   #20
kerm1t
Captain
146
Rep
936
Posts

Drives: 17 M3 ZCP Stage 2
Join Date: Jul 2013
Location: San Francisco

iTrader: (0)

Quote:
Originally Posted by dharo1 View Post
Likely a difference in shipping cost

last group buy price was only around $40 difference
Appreciate 0
      07-13-2014, 12:37 PM   #21
dharo1
Captain
dharo1's Avatar
United_States
214
Rep
661
Posts

Drives: Previous: F22 M235i ; F80 M3 ;
Join Date: Mar 2014
Location: El Paso, Texas

iTrader: (1)

Because 40 dlls JUST buys us a dinner, or JUST extra miles of gas in our 235, or JUST a good really nice tip to a waiter(ress) that had a bad day, or maybe just 40 extra dlls to a charitable organization of our choice.
Appreciate 0
      07-13-2014, 06:59 PM   #22
Shankska
Captain
Shankska's Avatar
United_States
399
Rep
623
Posts

Drives: 2019 BMW M2 Competition
Join Date: Apr 2014
Location: Kansas City

iTrader: (0)

Garage List
2019 BMW M2 CS  [0.00]
2016 BMW M2  [0.00]
2014 BMW M235i  [0.00]
1. dharo1
2. Nalinax
3. alz0rz
4. Shankska
5.
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 09:53 AM.




2addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, 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