Quote:
Originally Posted by TheDudeMan
Outside of crackle and pops, tunes do not make more engine noise. Most tunes or Sport + just keep the valve open. You can do the same by pulling the plug on your valve while it's open position. I did this right when I got my 330i with no issue or warning lights what so ever.
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Sounds like Sport+ is the best of both worlds, keep it quiet when you want it and more crackles/pops when you need it
