do you have a JB4 or are you just making assumptions??? Boost is NOT the same..
Quote:
Originally Posted by z435is
it shouldn't cause a night and day difference at all since boost is pretty much the same. however the IS models have the sport + feature (I'm not sure if normal z4 35i's have it to) but that is a night and day difference between normal mode and sport + mode, it is a huge difference. I think the jb4 automatically makes it as if it is running on sport + mode, and thats why people feel like its a night and day difference but its really the same as stock but jacked up to sport +... IMHO
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