I asked about the same and BMS replied with links. Here's the reply:
JB4 with our back end flash makes about 460 wheel hp with just JB4, intake and our back end flash .
https://www.n54tech.com/forums/showp...;postcount=106
Info and notes on the back end flash is here.
https://www.n54tech.com/forums/showthread.php?t=57432
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2017 BMW M240i xDrive - Mission Performance Stage 2 and transmission flash, CSF Intercooler, VRSF 4.5" downpipe, Dinan midpipe, BMW M Performance muffler, Agency Power Cold Air Intake. 11.58 @ 116MPH