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Old 02-07-2019, 12:13 AM   #18 (permalink)
It's all about Diesel
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Originally Posted by teoman View Post
If porsche are noting an fuel economy benefit it could be worth it.
But at which cost? Anyway, if I would ever use some active device to improve the flow in the air box, I'd much rather resort to some flap instead of a loudspeaker.

On the plus side it would be active and work for all rpm ranges and have an economy and power mode.
Nowadays I've been prefering engines with a narrower useful RPM band and rely on a wider gear spread.
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