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      09-29-2020, 09:33 PM   #1
alexb0730
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Mhd or bm3?? Decisions Decisions...
FBO 2015 640i GC. Which to go with?
Only other Mod may be meth or just run e30... not sure yet.

Not looking for a 10 sec car... just some more pep.
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      09-30-2020, 07:55 AM   #2
Russbmw
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I don't really fancy the idea of either to be honest, not without a power supply (not a battery charger) to hook up to the car whilst the process is underway - as it can take up to 40 mins or so the first flash.

From what I've heard, MHD is the preferred option for the N55 though.
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      09-30-2020, 05:57 PM   #3
alexb0730
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Quote:
Originally Posted by Russbmw View Post
I don't really fancy the idea of either to be honest, not without a power supply (not a battery charger) to hook up to the car whilst the process is underway - as it can take up to 40 mins or so the first flash.

From what I've heard, MHD is the preferred option for the N55 though.
Quote:
Originally Posted by Russbmw View Post
I don't really fancy the idea of either to be honest, not without a power supply (not a battery charger) to hook up to the car whilst the process is underway - as it can take up to 40 mins or so the first flash.

From what I've heard, MHD is the preferred option for the N55 though.
Yeah, I'm still doing some research... I follow both on FB. Seems they both put out about the same power. It's a summer / weekend car so just want a little more power. Not looking for a race car by any means.

I have read numerous posts about both. But yes, seems MHD is the preferred option for the N55.

Would like a bit more user opinions before I bite the bullet on either. Not to mention the user interfaces are both user friendly.
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      10-04-2020, 10:49 PM   #4
mjposner
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I used the MHD on my M4 and it never took 40 minutes, more like 15. That said I did use a battery tender. Was very pleased with the performance.
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