640i and JB4

BDO · 10-10-2016, 03:38 AM

Anyone running a JB4 on a 640i?

I am looking at adding one (new version with OBDII connector) on my PWG N55.

I am a little wary because it seems that the F1x platform doesn't get the same gains as the F3x, and has more problems as well (continuously running wtaerpump etc).

Any first hand experiences? What kind of gains did you guys get? Is it a worthy mod or not?

mike@x-ph.com · 10-12-2016, 03:50 PM

Hi,
We sell a lot of JB4 for the 640, you will love the extra power

We also offer 14 days money back guarantee

cartaa100 · 10-21-2016, 07:33 AM

JB4 didn't work on my car - i had power gains but it would stall 1/30 drives and go into limp mode every 1/30.... no idea why

mike@x-ph.com · 10-24-2016, 02:08 PM

Quote:

Originally Posted by cartaa100

JB4 didn't work on my car - i had power gains but it would stall 1/30 drives and go into limp mode every 1/30.... no idea why

Just take a few datalogs and send it to BMS, they will take care of it for you

10-10-2016, 03:38 AM	#1
BDO Lieutenant 276 Rep 536 Posts Drives: 2016 X6 40d M-sport Join Date: Feb 2011 Location: Citizen of the World iTrader: (0)	640i and JB4 Anyone running a JB4 on a 640i? I am looking at adding one (new version with OBDII connector) on my PWG N55. I am a little wary because it seems that the F1x platform doesn't get the same gains as the F3x, and has more problems as well (continuously running wtaerpump etc). Any first hand experiences? What kind of gains did you guys get? Is it a worthy mod or not?
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10-12-2016, 03:50 PM	#2
mike@x-ph.com Joint Chiefs of Staff 24189 Rep 190,802 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	Hi, We sell a lot of JB4 for the 640, you will love the extra power We also offer 14 days money back guarantee __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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10-21-2016, 07:33 AM	#3
cartaa100 Captain 36 Rep 842 Posts Drives: 335i, 640i, X6M50d, X3M40i Join Date: Jan 2012 Location: Sydney iTrader: (0)	JB4 didn't work on my car - i had power gains but it would stall 1/30 drives and go into limp mode every 1/30.... no idea why
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