[MiloMia]

Originally Posted by bryce

all the jb4 does is increase boost, add fuel to adjust air/fuel ratio. it doesn't touch, modify, control, or otherwise do anything with the igntion timing. a real tune does all those (boost, a/f, ignition timing, etc). running the stock ignition timing map is somewhat dangerous while running higher boost. BMS' tuning methodology consists of increasing boost while riding the knock sensor. not a gamble i'd want to make on a $50k f30.

vishnu will release a procede, that controls timing. cobb accessport will also release their product for the f30. you will have to wait longer for these two products, but the wait will be well worth it knowing that you're running a comprehensive tune that's not riding the knock sensor.

Very well said.