Why You Should NOT Remove Swirl Flaps on BMW N47 / N57

In this video I talk about how swirl flaps work and exactly whether or not you should consider removing the swirl flaps on your BMW N47 or N57 engine intake manifold.

The N47 is the 2L diesel and the N57 is the 3L diesel from BMW and both engines share the same design, just with one being a 4 cylinder and the other being a 6 cylinder engine.

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