BMW 3-Series (E90 E92) Forum - View Single Post

Damirnuh22 · 07-13-2020, 04:41 AM

Just bought a N54 335xi that already has jb4 tune on it I'm just getting into the N54 community was wondering would I be able to plug in mhd and tune it like that even if jb4 is already on , or would I have to back end flash ?

07-13-2020, 04:41 AM	#16
Damirnuh22 New Member 0 Rep 9 Posts Drives: 2008 e92 335xi Join Date: Jul 2020 Location: Salem Oregon iTrader: (0)	Jb4 to Mhd Just bought a N54 335xi that already has jb4 tune on it I'm just getting into the N54 community was wondering would I be able to plug in mhd and tune it like that even if jb4 is already on , or would I have to back end flash ?
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