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M57 twin turbo - swirl flaps
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H4MP
- Member
- Posts: 191
- Joined: Thu Jul 12, 2018 1:36 am
M57 twin turbo - swirl flaps
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
- Member
- Posts: 825
- Joined: Tue Jan 19, 2016 11:33 am
- Location: Norfolk
M57 twin turbo - swirl flaps
Not sure where you have heard that but the swirl flaps only really activate when your at tick over.......