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 B58 (M240i) Engine, Transmission, Exhaust, Tuning JB4 + MHD Backend flash

Post Reply
 
Thread Tools Search this Thread
      06-11-2019, 08:56 PM   #1
baldeagleman
Private First Class
United_States
47
Rep
163
Posts

Drives: 2018 M4 6MT
Join Date: Jun 2018
Location: New York

iTrader: (0)

JB4 + MHD Backend flash

I was wondering if anyone could explain the JB4 + MHD backend flash. I am currently just running the JB4, but I have seen people talking about adding MHD backend flash to make it better. Could someone explain what running both JB4 + MHD would give you as opposed to say, just the MHD backend tune? I am wondering if I should sell the JB4 and switch over to just MHD, but I have seen people talking about running both and I haven't found one location that explains everything.
Appreciate 0
      06-12-2019, 11:05 AM   #2
KjPerry
Enlisted Member
KjPerry's Avatar
United_States
18
Rep
45
Posts

Drives: 2016 BMW M235i xDrive
Join Date: Mar 2019
Location: Chicago, IL

iTrader: (0)

I was curious on this same topic as well.

Bald - have you done any other performance modifications or tunes outside of the jb4?
Appreciate 0
      06-12-2019, 01:34 PM   #3
greg21040
Private First Class
United_States
41
Rep
119
Posts

Drives: BMW M240i xDrive
Join Date: Mar 2019
Location: Maryland

iTrader: (0)

I asked about the same and BMS replied with links. Here's the reply:

JB4 with our back end flash makes about 460 wheel hp with just JB4, intake and our back end flash .

https://www.n54tech.com/forums/showp...;postcount=106

Info and notes on the back end flash is here.
https://www.n54tech.com/forums/showthread.php?t=57432
__________________
2017 BMW M240i xDrive - Mission Performance Stage 2 and transmission flash, CSF Intercooler, VRSF 4.5" downpipe, Dinan midpipe, BMW M Performance muffler, Agency Power Cold Air Intake. 11.58 @ 116MPH
Appreciate 0
      06-12-2019, 05:09 PM   #4
Dylan86
Colonel
Dylan86's Avatar
Canada
1330
Rep
2,214
Posts

Drives: F15d msport, F22 m235i
Join Date: Jan 2016
Location: GTA

iTrader: (0)

If you plan to integrate meth or PI, the JB4/BEF is the way to go.

Otherwise I can't see the need, as these tunes offer most of what the JB4 offers for features, aside from the integrated meth management.
__________________
Appreciate 0
      06-13-2019, 04:58 AM   #5
baldeagleman
Private First Class
United_States
47
Rep
163
Posts

Drives: 2018 M4 6MT
Join Date: Jun 2018
Location: New York

iTrader: (0)

I just have BMS intake and vrsf downpipes.
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 07:48 AM.




2addicts
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