Standalone MHD VS W/ JB4?

COTT3series

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Mar 1, 2017
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Is it really worth it to run both? My buddy says that running MHD without the JB4 is pointless.
 

doublespaces

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Oct 18, 2016
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Is it really worth it to run both? My buddy says that running MHD without the JB4 is pointless.
There is MHD and there is jb4. Then there is jb4 with a backend flash via MHD. A backend flash without jb4 is not going to be what you want and is probably what he's talking about. But that sounds like he's not fully aware of what MHD does.
 
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Kenjermen

Sergeant
Nov 6, 2016
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If you already have a JB4, then yes use the mad backend flash. As far as choosing one for a tune that's a whole topic beaten down over and over. But you can't go wrong with any one you pick, or even stacking them.
 

COTT3series

Private
Mar 1, 2017
48
5
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Ride
2008 BMW 535xi, 2007 BMW 335i.
There is MHD and there is jb4. Then there is jb4 with a backend flash via MHD. A backend flash without jb4 is not going to be what you want and is probably what he's talking about. But that sounds like he's not fully aware of what MHD does.

Pretty much. He said JB4 with the backend flash and that MHD standalone is as pointless as cobb pretty much.
 

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Sergeant
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Jan 23, 2017
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Depends what you're looking to do. The JB4 doesn't cost much more and provides a ton of tuning flexability and mapping, and great support.
 

COTT3series

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Mar 1, 2017
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2008 BMW 535xi, 2007 BMW 335i.
Depends what you're looking to do. The JB4 doesn't cost much more and provides a ton of tuning flexability and mapping, and great support.

I currently have a procede on my 535xi and my biggest gripe about piggyback is the need for a laptop. ☹️
 

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Sergeant
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Jan 23, 2017
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I currently have a procede on my 535xi and my biggest gripe about piggyback is the need for a laptop. ☹️

Wow I didn't know there were many procedes still out there. Kudos for making it this far. ;)

I'm a laptop guy but JB4 also offers fully wireless bluetooth to your phone as an option.

 

Twisted Tuning

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Is it really worth it to run both? My buddy says that running MHD without the JB4 is pointless.


I'll just say this....

MHD Flash calibration whether custom or OTS, does NOT need a JB4 to perform properly and consistently.

However, a JB4 does indeed need a BEF to function as good as a stand alone flash

There are certain situations where having the JB4 can help. Like with PI. But it's still not a Need. People who already have JB4. Can just keep it and use the BMS BEF or a custom BEF.

There is no better control for these cars right now than the Factory DME. Period! But other things can be used.
 
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Sergeant
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Jan 23, 2017
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The car is moving so fast the cluster thinks it's standing still... :)

Video is from our M3 on the dyno, in dyno mode sometimes the speedo disables itself in dash.
 

doublespaces

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Oct 18, 2016
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Wow I didn't know there were many procedes still out there. Kudos for making it this far. ;)

I'm a laptop guy but JB4 also offers fully wireless bluetooth to your phone as an option.


Makes me wonder, where did they all go? Living in closets?
 

COTT3series

Private
Mar 1, 2017
48
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2008 BMW 535xi, 2007 BMW 335i.
Tell your buddy to do some proper research on how it all works and keep learning. Also don't take any further technical advice from your buddy.

for sure man! I figured MHD alone would be sufficient for what I'm doing.
 

mkster08

Corporal
Nov 5, 2016
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Switched from stacked to mhd only a long time ago... Much better, not to mention the mhd logger is superior
 

jdm5596

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Nov 5, 2016
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Never ending conflict. Most people dont understand it all but yet the like to comment bullshit. I use jb4 and flash with mhd. I still custom tune myself, use jb4 for boost and pi control which is great.
 

mkster08

Corporal
Nov 5, 2016
107
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Kansas
And there's definitely nothing wrong with that. Its all preference unless you're trying to do certain things a certain way