Quote:
Originally Posted by Soxypoo
So the jb4 is jot make for your car ? Do you know jb4 is good for 40i ?
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They make a g series JB4 but I just couldn't get it to work properly and with the logging etc and I didn't feel much of a difference. With the flash it is night and day.
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2016 340i xdrive, M Sport, adaptive suspension, BMS intake, ER Downpipe, JB4