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      12-16-2013, 11:38 PM   #1
bmwarg
First Lieutenant
United_States
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Drives: 2008 E90 335i, 2012 E70 50i
Join Date: Jun 2013
Location: San Francisco, CA

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BMS backend flash question

I only have JB4 ISO 25 and running map 5. I live in California and so run 91 octane pump gas. Now that the BMS backend flash is free and they have pump gas versions, do I benefit from flashing or is it better to be running JB4 only?

Thanks!
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2008 E90 335i: JB4 G5 ISO | BMS Pump Gas Backend Flash | ER Charge Pipe | n54Tuning DPs | ETS FMIC