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M57 twin turbo - swirl flaps

Discuss your latest mods or ideas, and anything to do with the BMW X5 (E70).
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H4MP
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M57 twin turbo - swirl flaps

Post by H4MP » Thu Aug 11, 2022 10:49 am

Hi guys my car has done 192k miles on a 2009 35d. The swirl flaps have not been removed, do I really need to remove as I hear they the would be a slight loss in power and economy.

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marti
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M57 twin turbo - swirl flaps

Post by marti » Sun Aug 14, 2022 9:24 am

Not sure where you have heard that but the swirl flaps only really activate when your at tick over.......

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