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      02-12-2020, 09:32 PM   #5
Anthony1s
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Drives: 2018 Mineral Grey M2
Join Date: Oct 2017
Location: Pennsylvania

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Quote:
Originally Posted by bluem2 View Post
isn't the burble related to throttle and exhaust and not the transmission? or the assumption of having aftermarket exhausts would make the upshift more pronounced?
I believe the engine is disengaged and fuel is cut during a shift, which would retard timing the same as lifting off the throttle. Someone pls correct if I'm wrong. So under some conditions you will hear a single pop when shifting before fuel is added back to the engine and timing is advanced.

I don't believe there is any benefit to this behavior, as there is with colloquial burbles, but it's more-so left there as it's not so simple (or impossible) to program the tune to not do it during shifts.
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